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Network drives and email disconnecting

Posted on 2013-11-12
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Last Modified: 2013-11-20
I am starting to have a problem that I do not understand what could be causing it.  Randomly on the computers on our network the users will have to enter their IDs and passwords in order to access their email and/or the drives on our network server.  Normally once you sign into the computer using your network ID and password the networks drives and access to their email does not require any additional enter of their IDs or password.  The thing that is puzzling me is that it seems to be random, different computers, different user, at various times.   Does anyone have any ideas as to what I could look at to see what may be causing this.  We also use three different OS, XP, 7 & 8.  It does not seemed to be associated with the operating system because all the various operating systems have this problem.
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Question by:Bill2802
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13 Comments
 
LVL 24

Expert Comment

by:smckeown777
ID: 39644410
Need more info on your environment first...

What email system is this? Exchange? Version? SBS?

Can you post output of

ipconfig /all

from one of the clients as well please...

When did this start happening? Is this a new install or a working network for years? If anything new was put in place tell us what that was as well if possible
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Author Comment

by:Bill2802
ID: 39644923
We use Exchange Server 2010 version 14.01, with SBS 2011.

I have attached a document with the screen print of the ipconfig /all output.

We have had this system for about a year.  The only new thing we changed recently was the router that goes from the server and switches to the Comcast modem.  This started happening about a month ago.
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LVL 24

Expert Comment

by:smckeown777
ID: 39645259
No attachment...

So is the router doing DHCP or the server? Possibly the router is running DHCP and needs to be switched off...but lets see.
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Author Comment

by:Bill2802
ID: 39646594
No, the router is not doing DHCP, the server is.  It is one of the things I made sure of when I installed it.
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Expert Comment

by:smckeown777
ID: 39646602
Still need ipconfig details
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Author Comment

by:Bill2802
ID: 39648156
Here is the ipconfig output

Windows IP Configuration
  Host Name...MyComputer
  Primary Dns Suffix...FBCW1.local
   Node Type...Hybrid
   IP Routing Enabled...No
   WINS Proxy Enabled...No
   DNS Suffix Search List...FBCW1.local
                                            fbcw1

Ethernet adaper Local Area Connection 2:
   Media State...Media disconnected
   Connection-specific DNS Suffix...
   Description...Infineon AN983B PCI Based Fast Ethernet Adapter
   Physical Address...00-0C-41-28-28-06
   DHCP Enabled...Yes
   Autoconfiguration Enabled...Yes

Wireless LAN adapter Wireless Network Connection 4:
   Media State...Media disconnected
   Connection-specific DNS Suffix...
   Description...Microsoft Vertual WiFi Miniport Adapter#2
   Physical Address...C6-CB-38-8B-16-D6
   DHCP Enabled...Yes
   Autoconfiguration Enabled...Yes

Wireless LAN Adapter Wireless Network Connection 3:
   Connection-specific DNS Suffix...fbcw1
   Description...DW1525 <802.11n> WLAN PCIe Card #2
   Physical Address...C0-CB-38-8B-16-D6
   DHCP Enabled...Yes
   Autoconfiguration Enabled...Yes
   Link-local IPv6 Address...fe80::48fb:fd91:3d74:2285%15<Preferred>
   IPv4 Address...192.168.0.113<Preferred>
   Subnet Mask...255.255.255.0
   Lease Obtained... Sunday, November 10, 2013 4:37:02 PM
   Lease Expires... Monday, November 18, 2013 4:37:02 PM
   Default Gateway...192.168.0.1
   DHCP Server...192.168.0.6
   DHCPv6 IAID...415288120
   DHCPv6 Client DVID...00-01-00-01-14-FD-F7-32-B8-AC-6F-E2-12-09
   DNS Servers...192.168.0.1
   Primary WINS Server...192.168.0.6
   Secondary WINS Server...192.168.0.3
   NetBIOS over Tcpip...Enabled

Ethernet adapter Local Area Connection:
   Connection-specific DNS Suffix...FBCW1.local
   Description...Realtek PCIe GBE Family Controller
   Physical Address...B8-AC-AR-E2-12-09
   DHCP Enabled...Yes
   Autoconfiguration Enabled...Yes
   Link-local IPv6 Address...fe89::4140:d642:97e:4d4%10<Preferred>
   IPv4 Address...192.168.0.150<Preferred>
   Subnet...255.255.255.0
   Lease Obtained...Friday, November 08, 2013 10:55:23 AM
   Lease Expires... Wednesday, November 13, 2013 3:53:57 PM
   Default Gateway...192.168.0.1
   DHCP Server...192.168.0.1
   DHCPv6 IAID...246983791
   DHCPv6 Client DVID.....00-01-00-01-14-FD-F7-32-B8-AC-6F-E2-12-09
DNS Servers...192.168.0.6
                         192.168.0.3
NetBIOS over Tcpip...Enabled




Looking at this it does seem that my router is acting as a DHCP server also which it is not suppose to.  I will take a look at it and if needed change the configurations after everyone leaves for the day.
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Author Comment

by:Bill2802
ID: 39648165
I just checked the router and it is set to "Auto".  I will set it to client after everyone leaves in case it messes something up I will have time to fix it before tomorrow.
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Expert Comment

by:smckeown777
ID: 39648536
Yes, I see that as well...sure see how you get on
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Author Comment

by:Bill2802
ID: 39649719
Well I tried it after everyone left so that I would not mess them up.  A good thing I did.  Once I changed the Amped router to Client I lost Internet access and I lost contact with the router.  When I scanned for it, no IP address showed up for it.  I even hooked and Ethernet cable directly to the router and could not get signed on.  In the end I had to reset it and then reload my old settings.  I am starting to think that this router just will not work smoothly with our Comcast modem and the network.  Would you have any suggestions on the best n router that would work with a comcast modem and accept the 192.168.0.1 IP address for our gateway?  Thanks for you help thus far.
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LVL 24

Expert Comment

by:smckeown777
ID: 39650897
Bit confused here...

On this router is there not a LAN section and a DHCP section within that? Normally you simply disable the DHCP and it doesn't hand out IP's...
You mentioned 'Auto' and 'Client' - on what screen are those settings?
What model router is this exactly?

Most routers are configurable...so I could name any brand and it should do what you need...Netgear/Draytek/Linksys...but that's why I'm confused as to what your current router is/isn't doing...
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Author Comment

by:Bill2802
ID: 39651210
I am confused why this router is not configuring correctly myself.  

It is an Amped router R20000G.  In the LAN section it gives you more selections.  It has, "server", "auto", "client", and "disable"

 The problem that I am running into is that this router has to have the address of 192.168.0.1 because it serves as our gateway to the Internet.  

The other thing is that when I check "disable" it does not seem to get any IP address at all.  The client should work because then it should become the client of our server DHCP and get the address 192.168.0.1, but as I found out last night, instead of it doing that it just seems to disable the DHCP and it receives no IP address.  It may be that this router is faulty or it may be that this is the way these routers work, I do not have enough experience with them to know.
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Accepted Solution

by:
smckeown777 earned 2000 total points
ID: 39651292
Ok, sounds to me like a basic enough router then...I'd switch to another model with decent options to enable/disable services properly if it were me

As for which model - what size of business is this? 10-30 users(i.e. small) or something bigger?

Netgear models are usually fine for something small like 10-30 users I usually find...but then I've also installed Draytek routers for clients that want something with a bit more kick as they say...

From those settings you described I'd guess 'Server' is the one that configures the router as a DHCP machine - client means it gets an IP FROM another DHCP like you said...makes sense

But the fact that it doesn't have a section where you can set a static ip(which is normally bog standard on ALL routers I've ever bumped into) that's strange for sure...
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Author Closing Comment

by:Bill2802
ID: 39663917
Thanks I, BTW it will accept a static IP, but for some reason the I am still not able access it once I disable the DHCP.
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