Solved

Network  Lockup

Posted on 2013-05-13
6
356 Views
Last Modified: 2013-10-07
Hello:

I have a site a I'm managing where the network occasionally locks up and the router (Netgear FVS318) has to be rebooted in order for all connections to be restored. I'm thinking about upgrading to a gigabit router and switch, however I wanted to know if there is anything else I should do.

Current network setup:
Internet -> Comcast Router -> Netgear FVS318 -> Netgear 10/100 switch -> SBS2011 (DHCP)

Also:
-We've installed UC320w connected to the LAN and with direct connection out to the Comcast router
-15 Workstations
-15 VoIP phones
0
Comment
Question by:rroy0829
  • 2
  • 2
  • 2
6 Comments
 
LVL 7

Accepted Solution

by:
tolinrome earned 500 total points
ID: 39162070
My thoughts are the router may not be able to handle the load the voice and data. Wouldnt comcast offer a GB one? I'm not a big fan of netgear so woudlnt really know if the FVS318 is limited in your scenario.
Do you notice it locking up in certain scenarios, when a certain amout of VoIP connections are in session etc?
0
 
LVL 11

Expert Comment

by:naderz
ID: 39162670
What's the boundary of the problem? When you say "lock-up" is that affecting the Internet traffic only or all connectivity. Are workstations able to talk to each other on the same LAN when the lock-up occurs?

What functions and services does the FVS318 provide right now?
0
 

Author Comment

by:rroy0829
ID: 39162727
I'm not always on-site, so i don't know when exactly the loss of connectivity happens. Last week however, I did notice that one of our users opened up Youtube and maybe a minute after the Netgear router needed to be rebooted. I have since blocked Youtube, but still experience the issue.

When the lock up happens it includes loss of connectivity to the server and internet. Users cannot access shared folders with no communication within the LAN.

The FVS318 serves as a router, firewall and VPN access. The SBS server is the DHCP.

Should I remove the FVS318 router and give the direct connections to the Comcast box? I'm just used to having something in between the Comcast and the internal network.

Thanks for the help!
0
Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

 
LVL 7

Expert Comment

by:tolinrome
ID: 39162823
Thats what I would do. If the router reboots "fixes" the problem. I would remove it and have the switch connect directly to the Comcast modem. Especially if they are a client of yours the downtime doesnt go well. At least youre taking a step in possibly eliminating the problem.
0
 
LVL 11

Expert Comment

by:naderz
ID: 39162947
If you are also loosing connectivity within the LAN (the Netgear 10/100 switch), then make sure you don't have any loops in your network: make sure there is only one and only one connection between these:

Comcast Router -> Netgear FVS318 -> Netgear 10/100 switch

That's important.
0
 

Author Comment

by:rroy0829
ID: 39165973
So here's what I've done so far....

1) Made sure there were no loops in the network. btw..there were no loops to begin with, so that was not the issue.
2) Removed the Netgear FVS318 from the scenario
3) Setup the Cisco UC320w to route both voice and data with external DHCP (SBS server), per the advice of an engineer from Cisco..
4) Ordered 10/100/1000 switch to replace the current 10/100

So far no lockups or the network going down (keeping fingers crossed). I'd like to maintain this for about a week and then will post the results.

Thanks for your help experts!!
0

Featured Post

Watch Anatomy of a Wi-Fi Hack On-Demand

In less than a weekend, anyone with Internet access and some free time can become a Wi-Fi MitM to wreak havoc on your network. View our Wi-Fi Expert in an on-demand episode of our Secure Wi-Fi mini-series as he explores the motives, execution, and anatomy of a Wi-Fi hack.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
VLAN Configuration on Cisco Switch 8 35
ACL not working 11 47
Show IP BGP Information 10 42
Cisco 2911 Router - slow download speeds but very fast upload speeds 5 33
There are two basic ways to configure a static route for Cisco IOS devices. I've written this article to highlight a case study comparing the configuration of a static route using the next-hop IP and the configuration of a static route using an outg…
Shadow IT is coming out of the shadows as more businesses are choosing cloud-based applications. It is now a multi-cloud world for most organizations. Simultaneously, most businesses have yet to consolidate with one cloud provider or define an offic…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

685 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question