Network Lag Issues 1

[Danno49]

I am the jack-of-all-trades and master of SOME for my company. We are experiencing some issues with speed performance on our network. I need to discover what the problem is that is causing the slowdown of traffic. I have downloaded Ethereal and have done some live captures but cannot really determine if there is anything untoward going on. It seems like viral behavior, but I cannot locate anything with my network AV software. I am not a network guru, but I know enough to get by. Well, I can't just 'get by' in this situation. I would like to get some thoughts by the gurus here by posting some of the sniffing results. Let me know and I'll post them. Thank you in advance!

 

[bcastner]

Start by seeing my thoughts here: thread779-897898

 

[Danno49]

Thanks for the reply but I am confused as this is not a problem with people not being able to browse their local drives. This is a network-wide badwidth problem. How would a new registry entry on my local machine help me diagnose the problems plaguing my network? I am grateful for any thoughts you may have.

 

[Danno49]

Never mind. I have figured out the problem. We had a user with multiple Bit Torrent clients open with max. connections set at 20+ per client. The Bit Torrent activity has been stopped and the network is back to normal. Thanks for your thoughts, bcastner!

 

[bcastner]

The second registy entry removes the default search for remote scheduled tasks, and often helps quite a bit.

I have seen more and more of the issues discussed in this MS KB:

http://support.microsoft.com/?kbid=315237

The value of the following KB article is the links at the end. Resolve SMB signing and opportunistic locking issues:

http://support.microsoft.com/default.aspx?scid=kb;en-us;814112

Finally, if you have XP clients, upgrade to Service Pack 2. It makes a world of difference:

http://www.microsoft.com/technet/prodtechnol/winxppro/sp2preview.mspx

 

[Danno49]

Wow! Great information that is much appreciated. I currentyl have no XP clients on the network but that may change. Always looking for more useful knowledge resources. You have put me on track to quite a few and I appreciate it!