Small Business Networking

I am attempting to upgrade my business network.  We have been having connectivity issues, such as lag time in our internet speeds.  A friend of mine mentioned that it may be due to the all of the items that are connected into the network such as our printers, tvs, servers and of course, computers.  We have a basic cable line via time warner and a T-1 line may be out of our price range at this point. Our connection is the same one that I have at home.  I have tired doing some reserach on what would be the best way to manage the network and keep us efficent.  At any given time we have 4 computers accessing the network (2 at all times both Macs).  

The modem that we have now is a Motorola 567005-005-00 Surfboard Cable Modem  http://www.compsource.com/pn/56700500500/Motorola_297/

I use a dlink wireless router- D-Link DIR-655  - http://www.dlink.com/products/?pid=530

I have a small netgear hub that allows me to plug in more items and I am sure slow everything down.


My question then becomes would it be feasible to invest in a more powerful modem, hub/ switch and wirleless router.

For example:

Modem: Motorola SBG901 SURFboard® Wireless Cable Modem Gateway   http://www.frys.com/product/6046278?site=sr:SEARCH:MAIN_RSLT_PG

Switch/ hub: Netgear GS724TNA Prosafe 24 Port Gigabit Smart Switch  http://www.frys.com/product/5176046?site=sr:SEARCH:MAIN_RSLT_PG

Wireless Router:  ROSAFE® 802.11N‡ DUAL BAND WIRELESS ACCESS POINT WNDAP330 http://www.netgear.com/Products/APsWirelessControllers/AccessPoints/WNDAP330.aspx

I am guessing these all need to work together and I want to make sure that I am on the right path...and that is why I am here.

Thank for your help.
RobisonbrianAsked:
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someone0Commented:
You mention that lagg time is the issue, if that was the case, I don't think hardware is a big problem here.  Exactly what kind of traffic are flowing through and how much bandwidth do you have?  There are few likely scenario here.  One is that you have computer that fighting for very limited bandwidth, then maybe a router that support some sort of packet prioritization would help.  Your  D-Link DIR-655 probably already have that, it's a matter of configuration.  Let's say downloading a large file is not as important as VoIP or Streaming media.
On 2nd scenario,  you have lots of traffic that congested between each computer and those take too much priority over things that should be going out to the internet.  If you are using wired network, then this may not be an appearance of a problem, but on wireless it could be.  Wireless router/AP works differently from one to the other.  But for sure, the bandwidth is shared among all the node.  If both of your mac are using wireless, then even if you are connecting at 54mbps on both machine, the bandwidth will be divided for both mac.  And things get worse as they got shared more, but that's just how wi-fi works.
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CrystalMethodCommented:
Your internet connection itself could also be part of the problem. Depending on what speed you're actually getting as opposed to the advertized speed. If the Netgear device you have is a "hub" and not a switch, then it will definately slow things down. I would run a speed test to see what kinds of speed you are getting and then contact your provider to see what upgrade plans are availible.

http://www.speedguide.net/speedtest/test.php   here's a link to a speed test. Post back with your results.
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ABLComputersCommented:
If your lag time is on getting local resources, I will strongly suggest looking into the wiring of your network. Get each cable tested and make sure that you're using the same color code through out your network.

You can use use a network monitoring software like ethereal http://www.ethereal.com. This will show you the systems and apps that's clogging your network.

This is the way to go before purchasing new hardware.

I agree with the two post with CrystalMethod and Someone0
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Scott ThomsonCommented:
ok despite this being a relatively easy question you have combines teaching with a basic answer and you havent quite clearly described your full setup

Network ~
How are the devices on your network connected..?
- are they wired
- is it gigabit or 100mb

Do you use the wireless at all..? if so which devices use the wireless and what speed for connection are they getting..?

What things are the computers doing.. for example are they accessing basic 1 megabyte word documents..? are they accessing 600 megabyte photoshop files..? are they accessing 130 megabyte excel or access files..? it doesnt really matter what type of files they are accessing. the more important figure is the size of the files they are accessing

Internet~
go to http://www.speedtest.net/
do a speed test and give the results.
are you downloading constantly..? what sort of files etc



General information ~

1 mbps (mbps is megabits per second not megabytes) is actually the equivelant speed of 122 kilobytes per second

so if your using a wireless connection at full speed (which rarely happens) you get 54 mbps (between all computers connected to it) which is 54 x 122 which is the ability to transfer 6.588 Megabytes (as in the average size of 2 mp3's) per second.

now if you have 2 computers connected via wireless both accessing files of lets say 100 megabytes

thats 200 megabyes / 6.55 = approximately 30 seconds.. assuming both have perfect connections

if they are all wired.. it means you double the speed so half the time

when you add some of these facts**

printers - old printers printing pdf files can make files of upto 200+ mebabytes
files - files accessed can be large upto 200 megabytes
random data transferring
internet usage sites like new sites can burn through some network speeds. game usage and downloading also uses bandwidth
application updates


this can all make a connection very slow



Internet**
your internet connection is totally dependant on how fast are your uploads and downloads. they work on the same principles however.

1 mbps = 122 kilobytes per second. and this number doubles for every megabit. if you have multiple pc's connecting to the internet and surfing / downloading this can cause slow internet

i can tell you your exact issue when you answer my questions but until then basic information is all i can give to help you diagnise. also the applications listed above can help you :)
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RobisonbrianAuthor Commented:
Here are there results of the speed test

SG Speed Test Results
kbps       
2000
4000
6000
8000
10000
download
upload
      
« 6691 kbps ¿

« 1635 kbps ¿

 
6691 kbps down (~6.69 Mbps, 817 KB/s) ¿
1635 kbps up (~1.64 Mbps, 200 KB/s) ¿

Details:
5120 KB downloaded in 6.269 seconds
2048 KB uploaded in 10.261 seconds
Speed @ 143% of the average for san.res.rr.com
126 times faster than 56k dialup
Tested on: 2010.04.21 19:12 EDT
Tested from: speedguide.net
Test ID: 2870166
Browser/OS: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.9) Gecko/20100315 Firefox/3.5.9 GTB6
IP Address: 24.165.1.37
Provider: san.res.rr.com
Location: San Diego, CA, US
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Scott ThomsonCommented:
ok so with speeds posted like that you can expect the following

Download speed of 7.22 megabytes per second

Upload speed of: 180 kilobytes per second

if your current internet usage is exceeding this (and id say more likely if it is its on the uploads side)
then thats the cause of your lag.

but you have not included any information on your local network traffic which could also be causing the issue.
what srt of applications do you use. what sort of information is going accross the network..?

anymore information would be greatl helpful :)
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CrystalMethodCommented:
Minor correction. It's 7.22 megabits not megabytes. But, either way, your internet connection isn't the problem. I have roughly the same internet connection here at home, and at any given time I have at least 5 systems with active connections to the internet. It's possible that the modem might have to be power cycled. Could also be a DNS routing problem.

To rule these out, I would disable the DHCP on your router and assign static IP's and different DNS servers to the systems. You can get a listing of free DNS servers inthe link.

http://theos.in/windows-xp/free-fast-public-dns-server-list/
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RobisonbrianAuthor Commented:
One thing that I noticed is that when when I disconnect items from the router it works better.  Problem is I need these items connected. I am loosing service at the worst possible times, like during web conferences. I need to get this corrected. thanks for your help.
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RobisonbrianAuthor Commented:
Could you kindly advise how I would disable DHCP settings and assign the IP's?
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CrystalMethodCommented:
Could you list the systems and devices on the network? I'll have to look up how to change things like printers, and other devices.
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Scott ThomsonCommented:
all should be basically the same.. find the network connection.. right click.. tcp ip settings and assign..

but you still havent given a detailed diagram or description of your network.. this IS needed to get a solution.. all we can give you is approximations and suggestions until you give us the information
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CrystalMethodCommented:
p1339, it's a bit more involved than that, as it's a business that can't really be taken down for any length of time. "right click.. tcp ip settings and assign.."  I'm sure works for Windows based PC's. But, for the Mac's, is it "command + click" what on the dock? My Mac's mouse only has a single button. How do I "right click" it?
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Scott ThomsonCommented:
i would not statically assign ip addresses. your best chance is to draw a picture or describe what is connecting to what. static ip addresses will not help in this case
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CrystalMethodCommented:
At this point I will defer to p1339, as he has more information on this matter.
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RobisonbrianAuthor Commented:
This issue is becoming more of a problem and I cannot find a resolution.  I nearly missed a very important web conference today. If I would have missed it would have cost me a great deal of money.  I am not sure what the issue is or how to correct it.  The only way I was able to connect without any issue today is via hard wire ethernet.   As I noted above, I have several computers and other items (printers and servers) that need to be working without issue.  I have tried using two different wireless routers (the d link noted above and an Apple Airport).  I have been advised above that it should not be an line issue as I am getting a good connection.  Then it must be a hardware issue?  What do I need to get to make this work and work efficiently. If I need new hardware what do I need? Of course, I do not want to buy new hardware, but I will if this will correct the issue.  I see some mention of a static IP address.  I am not sure what that is or how that would benefit me.  Any help would be greatly appreciated.  Thanks.
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RobisonbrianAuthor Commented:
This is what I have,or need to have connected.

4 computers
Hp server
Wifi printer
Apple tv
Dvr
Wireless iPhones
And would like room to add more if needed
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Rich RumbleSecurity SamuraiCommented:
Finding what is eating your BW is crucial, it could be folks using youtube, bittorrent or maybe people streaming Lost/PGA Open/NFL-draft... These are what we find most times when there should be plenty of BW and there is not. You have a few options, I recommend either running Ntop on each workstation, or if you can have a central collector, run Ntop on that. If you want to setup a central Ntop logger, you need to configure a port on your switch to send all traffic the switch see's to a mirror port or span session. Since you only have 4, it's probably easier to install it on each one and when you find an issue, visit each and see that they are doing at the time.
I was able to find an achived copy of Ntop-xtra for windows at archive.org
http://web.archive.org/web/20061014023702/http://freestuff.openxtra.co.uk/downloads/opensource/3_18_0/NTop_XTRA_3_18_0.exe
Once installed, you can set the service to automatic in the normal windows services console so that it starts when the PC starts. You may have to choose what NIC to use in each users PC, to do this after you've installed, at each local PC, go to http://127.0.0.1:3000 and the default user/pass is admin/admin.
In the Admin ->configure -> Preferences place a check mark on the correct NIC, and at the bottom of that page click save preferences (see screenshot below)
Restart Ntop either in the Commander which is the icon next to the Time (see screen shot below) by clicking Stop and then Start again once stopped, or by using the service console in windows where you can also configure the ntop service to be automatic.
You can visit each workstation and again go to localhost:3000 put in the user/pass again, and see what most BW is going to.
To get a good break down of what they are doing, go to Summary -> Host's, click on that users IP or PC name, on that page you will have a very good break down of what protocols were used, what sources and destinations used the most BW. It might in fact be too much information, but it is an easy app to use. You only have 4 host's so a collector, a pc dedicated to ntop, might still save you some time and effort, but 4 is manageable.
-rich
ntop-admin.PNG
ntop-commander.PNG
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Richard OlutolaConsultantCommented:
As this problem can cost your business due to poor performance, one hardware change I recommend is to change the hub to a switch immediately. There is no need for the added expense of a gigabit switch though since your devices are not equipped with gigabit interfaces themselves.

A hub SHARES the bandwidth (say 100Mb) among all devices whereas a switch would maintain the stated bandwidth for each device. So first, I would get rid of this potential bottleneck anyway.

I run a Netgear DGFV338 router/firewall with has 8 ports in my SoHo. It works brilliantly for my myriads of devices - including a number of Workstations, Laptops working wirelessly, 1 network printer, 2 network storage devices.

R.
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Richard OlutolaConsultantCommented:
Note that considering your current network architecture, you may get things running quickly by just changing the hub rather than the Netgear device I mentioned above since that includes a route and would involve you reconfiguring your router. I'm not sure you have time to go through all that.

Simply find a switch which has enough ports to accommodate your devices. You may get a Gigbit switch which will serve you as you replace your devices for faster models in future.

R.
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warturtleCommented:
Do you have Adobe Update Manager installed on your PC? I have seen questions before where this application would consume almost 100 percent bandwidth and had to be disabled or re-configured to allow network connectivity.
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wyliecoyoteukIT directorCommented:
The first thing that I would disconnect (after replacing the Hub with a Switch)is the appleTV.
If you use any sort of video streaming, that would be the main drag on the network.
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wyliecoyoteukIT directorCommented:
Also the DVR could be an issue.
Some networked video streaming devices can flood a network with broadcast video.

I have seen this in some windows video applications.

It depends on what you use the network for, but video is a huge bandwidth hog in general, unless well configured.
I can stream HD video on my home network without problems, but it has to be a unicast or multicast, not a broadcast stream.
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RobisonbrianAuthor Commented:
I will try the new hub. I do need the dvr and the apple tv installed to it as we do use it and they make easy stream videos and presentations.
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RobisonbrianAuthor Commented:
Would the network switch that I noted in my original posting work. Is that overkill?
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Rich RumbleSecurity SamuraiCommented:
I missed the HUB! Get a switch! OMG no wonder! Just about any will do...
-rich
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RobisonbrianAuthor Commented:
Sorry maybe I mis spoke. I have a small 4 port switch already. Can I add another smaller switch to it or should I just get one big one?
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Rich RumbleSecurity SamuraiCommented:
You can chain them, you can get cheapies or go up to the 299.00 model if you think it's worth it, it's a solid investment, switches aren't going anywhere for another decade... but hub's... eww they are very very outdated.
-rich
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CrystalMethodCommented:
Honestly, imo, you need to plan out and spend the money to redo your network. You're losing time and money due to network slowdowns as it (and possibly client confidence). But, also like richrumble mentioned. You need to find whats eating your bandwidth.

I'd make sure no one has any p2p applications running on their systems. Those have no place in a business environment, and will definately bring things to a crawl.
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wyliecoyoteukIT directorCommented:
A better quality 100 mbit switch would probably improve things, but if you are streaming video a lot, you should think about going to Gigabit really.
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wyliecoyoteukIT directorCommented:
Also a wireless n access point/router would be a good idea.
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RobisonbrianAuthor Commented:
I had added a switch.  I am still running into on small problem.  A few of the items such as the printer and the server need to be on the wireless.  What is the best configuration for items like this?  Should I plug them directly into the wireless router, which seems to defeat the purpose of the switch?  Maybe I have the wire configuration incorrect.  Modem to Wireless to switch then to hardware?  Modem to switch to wireless?  I hope that makes sense.
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warturtleCommented:
My suggestion would be to have the switch connected to modem. This will ensure that internet is going to work and can be distributed to other ports in the switch.

Then plug the wireless router into one of the ports of the switch (ethernet connection). This will allow the connectivity between the modem and all the wireless devices.

Modem---> plugged into ----> Switch - Port 1
Wireless router ------>  plugged into -----> Switch - Port 2

I hope that its clear. If not, please let us know. This should resolve the connectivity issues and should allow everything to connect. The only question now is bandwidth and if thats enough or not for the video conferencing and other purposes.
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RobisonbrianAuthor Commented:
I have connected the the modem wire into port 1 and the wireless into port 2. I have then connect the other items into the other ports.  The items that require wireless are not working.

Here is the switch that I am now using.

http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=1697260&SRCCODE=GOOGLEBASE&cm_mmc_o=VRqCjC7BBTkwCjCECjCE

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warturtleCommented:
First thing to check, is your modem actually connecting to the internet? Maybe you can plug in a laptop into Port 3 of this switch and see it that way (it would be an ethernet connection).

Second thing to check is that if the internet and wireless lights are switched on (on the wireless routers they normally have lights to indicate if wireless is ON and connected and if the router can actually receive broadband signal or not).

It might be worth waiting for a minute or two, until the wireless router can initialise with the switch.

Let us know, how it goes.
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warturtleCommented:
Another couple of things that crossed my mind:

1. It could be that the wireless router is able to create a wireless network, but not actually receive the broadband signal from the switch. If thats the case, then connecting a laptop wirelessly to the wireless network and then trying to access internet would confirm that. That would mean changing settings on wireless router to be able to pick up the network connection from the switch.

2. Are any of the devices that are on wireless network expecting to connect with wireless router on a specific IP address? Lets say the IP address of the wireless router earlier was 1.1.1.1 and the wireless printer had been hardcoded to only expect a network connection from 1.1.1.1. I actually mean DNS settings here. Whereas the above setup has possibly changed the IP address to 2.2.2.2 and now, we need to change that in the printer settings now. It might not be the case here, but I thought I would share nonetheless.
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warturtleCommented:
Yet another suggestion lol ... sorry, I feel like I am spamming now ..

Since your modem also has the capability of creating a wireless network, you might want to disable that to allow all wireless devices to connect only to the new wireless router. It might save some electricity lol, and probably save up a bit on bandwidth. The new wireless router seems to be able to offer greater speeds as well, so that would probably help as well.

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CrystalMethodCommented:
To add to warturtle's suggestion about the wireless. Is it an option on your router to have it act as wireless accespoint? If so, you could move the router closer to the wireless devices to possibly get a better / faster wireless connection.
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RobisonbrianAuthor Commented:
I have checked that the modem is connected to the internet and the wireless router is working as that is the internet that I am using now, still not working the way I need it to.  It seems like the only item that is working that is plugged into the switch is the wireless router.  I will continue to try to troubleshoot.  I have reset and turn off all everything and started over, but that does not seem to work.  Just to clarify, I have the wire from the modem going directly to port 1 and the wire that wireless router is connected in port 2 (in the back of the router the wire is connected to port 2 is where I would normally connect the router wire.).  All other items are connected to the other ports.  The hardware that needs to be wireless is the printer and the server.  I am sure they will work if I plug them directly to the wireless router, but as I noted above that may defeat the purpose of the switch.  Thanks for your help.
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RobisonbrianAuthor Commented:
I will test the laptop and get back with you.

Also the wireless router that I am using at this point is the AirPort by Mac. Not sure if that helps.
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RobisonbrianAuthor Commented:
Test with a laptop in port 3 with a Ethernet cable and could not get internet service via that port.
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RobisonbrianAuthor Commented:
I am able to access the internet using the laptop using the wireless connection.
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CrystalMethodCommented:
What are the IP addresses of the AirPort, Router and your modem? If ANY of these share the same IP's, that would possibly explain your problem.
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warturtleCommented:
In response to your comment: "Test with a laptop in port 3 with a Ethernet cable and could not get internet service via that port. " - that is weird. The switch should simply delegate the internet connection to the laptop when its connected via ethernet.

Good news is that the wireless router is working as expected.

As CrystalMethod has also pointed out about IP addresses, you should check the IP's on the wireless printer and server as well. Try to find out what their IP addresses are. If your laptop can connect to the wireless network, that means that things are working out perfectly. Try going into the printer and server settings to see, if they have any hardcoded IP's or if they are using DHCP and depending on the wireless router to assign them an internal IP address. Most printers these days have a web interface as well, so if you can somehow connect to them on network, you might be able to get to their web interface to see their internal settings.

What you can also do here is: If you can find out the IP address of the wireless router from your laptop and program that to be the DHCP server within your wireless printer and wireless server, that might resolve the issues. There is a bug here though, if the IP address of your wireless router changes (which might happen if you turn the switch off, or the wireless router itself) then you will have to change settings for DHCP server within all wireless devices.

Easiest way to find IP address of the wireless router is this (in a command window):

tracert www.google.com

The first IP address that you see in the table is the wireless router.

Let us know, how it goes.
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wyliecoyoteukIT directorCommented:
I expect that this is becoming quite confusing.
Here's an attempt to clarify things.

Unless you have multiple external IP addresses, you should connect modem>router>switch.
The surfboard SB5101 ( I have one of these at home) only allows one connection to the internet, and the router shares that out via NAT(network address translation) connecting the switch to that will not work.
As the  D-Link DIR-655 router that you specified  has a gigabit switch built in, it will be faster than the Netgear - FS116P 10/100 switch that you have bought anyway.
Make sure that your cabling and your network cards are up to gigabit standards.
The fewer devices that use wireless the better, as the wireless-n bandwidth is lower than gigabit wired, and is shared between all wireless devices.
Printers are fairly low bandwidth, so should be ok, but I would guess that you ideally want the server connected via wire.
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RobisonbrianAuthor Commented:
Yes this is getting quite frustrating as the only way I can get any of the wireless items to work is to plug them directly into the wireless router.  I was under the assumption that buying a network switch ($179) would prevent a drag on the network traffic and it would manage the items appropriately.  At this point, I only have two items plugged into a 16 port switch and I am not any further along than when I started. I am not sure why this is causing such an issue for me. There has to be a simple way to have everything work together in harmony.  I cannot be the first person that has had this issue. I really do not want to have to pay to have a network "specialist" come in and sell me equipment that I do not need.  Any help would be great.  Thanks.
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Rich RumbleSecurity SamuraiCommented:
Plug the switch into the wifi routers "normal" ports with a cross-over cable if you need it to work immediately. The WAN ports of most wifi-routers can auto-detect when they need to cross themselves over on their own.
A typical network setup is:
Internet <--Cable/DSL/T1 modem/router  <---Switch---(wan)Wifi/Router
Devices plug in the switch and get dhcp from the modem/router or dhcp server that is in the switch, and the wifi typically has it's own dhcp and a separate subnet it uses for wifi clients or those directly plugged in. Perhaps the Switch has a dhcp server in it, and it hands out 10.0.0.0 address's and the wifi hands out 192.168.0.0..
-rich
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wyliecoyoteukIT directorCommented:
Unfortunately, if you are having problems using a Gigabit and Wifi-n network, there is a good chance that you are exceeding the limitations of the hardware. Video streaming at HD can easily do this, so can Bitorrent downloading..

The slowest link in the chain becomes the top speed that it will operate at.
You have a standard cable connection, which can operate @ 10 or 20Mbit (some are higher, but that is pretty common)
this 20Mbit (say) is shared with all of the devices accessing the internet at any given time.
If you are downloading video for example, it can eat a lot of that bandwidth.
The Gigabit and Wifi can operate @1000Mbit and 54Mbit (wifi-n) or 600Mbit(wifi-n2009) respectively, but they are connected to a 20Mbit pipe.
All of these speeds are shared between simultaneous users, so all wired devices will share the wired speed, likewise all wifi devices will share the wifi speed, but between them they all share the internet speed, which is 20Mbit.
You need to discover whether it is external traffic or internal.
If internal, you need to make sure that all of the PC network cards and cabling can handle 1000Mbit, and the wifi cards are wifi-n.
If external, you need to up your internet speed or make do with less traffic.
There may also be traffic shaping in place on your Internet connection, which will throttle back your connection speed at busy periods, and even for certain types of traffic.
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ericjarviesCommented:
Hello Robisonbrian,

First, I suggest getting a notepad and pencil(or use your iPhone's notepad), and writing down each Ethernet cable type that you are using throughout your office from modem to switch, and from switch to devices.  Please see attached images Ethernet_Wiring_Type.png and Ethernet_Wiring_Type_2.png for the type of cables you need from the SWITCH to your DEVICES, and see attached image Ethernet_Wiring_Type_Crossover.png for the type of cable you need from the SWITCH to the MODEM(I marked-up some Wikipedia.com images for you).  I suggest you use T568 Wiring for SWITCH to DEVICES wiring, which when looking at the Ethernet connector from Pin #1, the colors are as follows:
Pin1: white/orange stripe(pair 2 cable a)
Pin2: orange solid(pair 2 cable b)
Pin3: white/green strip(pair 3 cable a)
Pin4: blue solid(pair 1 cable a)
Pin5: white/blue strip(pair 1 cable b)
Pin6: green solid(pair 3 cable b)
Pin7: white/brown stripe(pair 4 cable a)
Pin8: brown solid(pair 4 cable b)
This means for ALL Ethernet cables that connect to the SWITCH and your DEVICES they should have BOTH sides of the Ethernet cable with the EXACT same Pin/Color order as mentioned above and illustrated in the attached images.  The One cable that connects the SWITCH to the MODEM should be 'crossed-over' like is seen in the Ethernet_Wiring_Type_Crossover.png image. Please reply/post your findings here in detail(per cable) so I know what cable type(s) and pin/color order you are using throughout your network. If cabling is causing this problem... we will catch it by doing as I've prescribed above.

The SURFboard SB5101 is just and only a modem with only one port, meant for connecting only one computer(either by USB or Ethernet, as discussed in this topic).  But when connecting more computers(I believe a max of 32 computers is possible with that Modem), this modem fails to perform in scenarios described and suggested in this topic.  

Anyways, prior to suggesting an alternative configuration, I first want to make sure your infrastructure is working correctly, namely cables and devices.  I beleive, due to the nature of your modem, that the DIR-566 Extreme should be the one that is connected to your modem, and then the switch should be connected to the DIR-655 Extreme.  But first let's get through some other things.

Next, I would suggest you remove all of your devices from the network, meaning unplug the Ethernet cables from the Netgear-FS116P switch(on the switch end), this includes your Wireless DIR-655 Extreme device!  After you are certain every Ethernet cable is disconnected from the Netgrear-FS116P switch, UNPLUG the power supply of both of the aforementioned devices.  Now take a short Cat5 CROSSOVER patch cable(that has the above-mentioned crossover Pin/Color order!) and plug one side into PORT 16 of your Netgear-FS116P switch and plug the other side of this crossover Cat5 cable into your service provider's SURFboard SB5101 modem(Internet connection) RJ-45 port.  Then turn on the SURFboard SB5101 modem and wait 5 minutes(or however long it normally takes to power-up and establish an Internet connection).  After the SURFboard SB5101 is connected to the Internet, power-up the Netgear-FS116P switch, and wait a minute or so, and then plug in your first device, ideally a laptop that you can have right in front of you near the modem and switch.  Plug this device(laptop/desktop computer) into PORT 9 of the Netgear-FS116P switch and mae sure to use the NORMAL(non crossover) patch cable.

Note; the Netgear-FS116P switch is a PoE switch, meaning it can power PoE devices like Access Points(Power over Ethernet=PoE).  Ports 1-8 of this switch have PoE, whereas Ports 9-16 do not have PoE.  I am not certain why you purchased this switch, but for whatever reasons I suggest we keep Ports 1-8 OUT of the equation for now.

If the device you connected is an Apple computer, then follow these instructions after you have plugged it into the switch as described above:
-Open SYSTEM PREFERENCES > NETWORK  and select Ethernet 1 and see if it's connected wherein it using DHCP, and has IP address, Subnet Mask, Router IP, and DNS IP  entries.  Below I've attached an image named System_Preferences-Network.png that shows what it should look like.

did the first computer connect to the Internet?  If so, what IP address was assigned to the computer(something like 192.168.1.10 or was it a public IP address like 24.165.1.37?)?  Now, connect a second computer to the switch, and this time connect the Ethernet cable to Port 10 of the Netgear-FS116P.  Again, go to this computer's network settings and see if it has been assigned an IP address, and if so, is it unique/different then is the first connected device?  

If you connect these 2 devices(computers) to the switch using the normal Cat5(any flavor, be it Cat5, Cat5e, or Cat6) T568B wiring(see Ethernet_Wiring_Type.png), and the SWITCH to the MODEM using the crossover(T568A on one end and T568B on the other end of the cable-see Ethernet_Wiring_Type_Crossover.png), and BOTH computers are able to connect to the internet, and each computer has it's own IP address, then I suppose it's ok to use this configuration, and I would then suggest you start adding one device at a time, testing it, and ten testing the existing devices, performing speedtest.net latency and throughput tests on each computer, and doing some file transfer tests between these computer on the local network, as well as out on the Internet.  If speeds are fine, add another device to the network... and remember, use Ports 9 thru 16.  Once all of you wired devices are connected and working/performing fine, then I suggest giving the wireless device DIR-655 Extreme a try.

Connect the DIR-655 Extreme to one of the available ports(Ports 9-16) on the Netgear-FS116P, and like all the other devices, make sure to use the normal(non-crossover) Cat5 T568B cabling.  Once connected, you need to navigate to the devices web-based administration page, and set it up so that it does NOT run it's own DHCP server, but rather, it should use the SURFboard SB5101 DHCP server.  I will explain how to do this if/when you get to this point(I am not convinced you will at this point, as I believe the SURFboard SB5101 will not play nicely and allow all of the above to transpire... but I'll await your response).

Let me know when you can do this, and I'll try to be near my computer so I can answer any questions you may post here on this exchange.  If the above SURFboard SB1501Netgear-FS116P configuration fails, then we will need to try the SURFboard SB1501DIR-655 ExtremeNetgear-FS116P route.

Eric Jarvies
Cabo San Lucas, Baja California Sur, Mexico

Ethernet-Wiring-Type.png
Ethernet-Wiring-Type-2.png
System-Preferences-Network.png
Ethernet-Wiring-Type-Crossover.png
Cable-Modem-Option-1.png
Cable-Modem-Option-2.png
Cable-Modem-Static.png
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pinascodeCommented:
I think ericjarvies has a great troubleshooting idea. You will have to do this when hardly anyone is in the office and you can work without this person and that person asking you when it will be finished. Hope you can sort this out soon.
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Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
This question has been classified as abandoned and is being closed as part of the Cleanup Program.  See my comment at the end of the question for more details.
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