Solved

network goes down in afternoon

Posted on 2004-04-12
9
251 Views
Last Modified: 2010-03-18
hi,

w2k small biz server, less then 100 nodes all on same subnet.

last monday 1-3 users started being kicked off the network.  usually just 1 user in particular, but others have went down a couple of times too.  while they are down, nobody can browse the internet either.  I installed capra packet sniffer to try and isolate.  i am seeing alot of netbios ssn traffic.  unfortunately, I don't work at this site all of the time, and by the time I get there, the problem has went away, i have been there once while it happened, but that was before i installed capra.  it always happens in the afternoon and goes away from 15 min, to a couple of hours later.  

any ideas?

thanks, Ross
0
Comment
Question by:rda123
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
9 Comments
 
LVL 31

Expert Comment

by:Gareth Gudger
ID: 10809317
Any services, backups or network traffic occuring around that time?
0
 

Author Comment

by:rda123
ID: 10809345
no backups.  I havn't been able to observe the problem since installing capra.  It went down today, I tried to get in via terminal server but it wouldn't let me, which I figured would happen since the internet was down.  I could still ping the external address of the router though, so I know the problem isn't with the isp.
0
 
LVL 31

Expert Comment

by:Gareth Gudger
ID: 10809355
This happens every afternoon? After happen then near those clients? Anything that could be an environmental variable perhaps? Like they are near a generator or something goofy that kicks on and causes crosstalk to kick them off. Or maybe its near the server.
0
Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

 
LVL 31

Expert Comment

by:Gareth Gudger
ID: 10809360
To add....ive seen people want to put servers near generators, environmental units and other such devices so I had to ask...
0
 

Author Comment

by:rda123
ID: 10809395
no changes like that afaik, I will ask about that though.  this just started last monday.  they use norton corporate, and it is up to date or I would have thought it was some weird virus.  I checked the main users pc that goes down completely the most for spyware, nothing too bad was in it.
0
 

Author Comment

by:rda123
ID: 11312277
i fixed the problem.  It finally went down and stayed down while i was there allowing me to troubleshoot deeper.  I traced it down to one part of the building that is fed by one wire to a hub.  the wire was going through a surge suppressor before going into the hub.  I plugged the wire into the hub directly and the problem went away.

I still don't know why it would only go down in the afternoon, but as long as it's fixed, i'm not going to fret over it.

I am going to close this now.
0
 

Accepted Solution

by:
modulo earned 0 total points
ID: 11350430
Closed, 125 points refunded.

modulo
Community Support Moderator
Experts Exchange
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Internet Speed Test 5 147
FTP output from Wireshak 6 115
Getting started with moving to a new Active Directory / Domain Controller setup 9 83
AD architecture diagram 5 83
Nslookup is a command line driven utility supplied as part of most Windows operating systems that can reveal information related to domain names and the Internet Protocol (IP) addresses associated with them. In simple terms, it is a tool that can …
Enterprise networks where VoIP phones have been deployed frequently use port configurations that allow both a computer and an IP phone to be plugged into the same switch port but use different VLANs. On Cisco equipment I'm referring to the "native V…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

710 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