Network slow and computers freezes

5 pts.
Tags:
3Com
Cisco Routers
HP Servers
IBM Servers
McAfee Antivirus
Network performance
Windows Performance Management
On our network, most if not all of the computers freezes.we do not know whether the problem is anti-virus or microsoft updates. We receive messages like buffer overflow and generic host process win32. Can some one help with this problem? We are using McAfee anti-virus.


Software/Hardware used:
hp servers,ibm servers,3com switches,cisco routers,nanoteq firewalls,server 2003,mcfee
Asked: Last updated:
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This is a tough one. Is it isolated to any particular client or server computers? Are there any events tracked in system event logs that can guide you into online research? A good tool for watching a system during the event is the Sysinternals Procmon utility. Can you disable AV and see if the issue happens? There have been instances of bad AV updates creating such problems. You may need to open a case with McAfee if you see that AV is creating the problem. Is AV managed through EPolicyOrchestrator? Maybe move some of the machines into different groups and have updates and or other AV events at staggered schedules. If all clients update AV at the same time, you will see some issues.

Let us know how you get on with diagnosing the event logs and any other details you can offer. We will be glad to assist further.

Discuss This Question: 4  Replies

 
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  • carlosdl
    I saw something pretty similar some months ago, with the same symptoms (and the same antivirus), and it was caused by a virus infection. I would recommend a complete scan with some other anti-virus software.
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  • Bpina
    Aside from the obvious issues with a potential virus infection, check your internal DNS servers and make sure they are in good health and good working order. Windows networking with unstable DNS servers makes for a very slow network indeed.
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  • Yasir Irfan
    This problem seems to be a some sort of trojan. These day unfortunately we too are facing lot of problems with McAfee AV . You can contact McAfee and can get the latest beta dat file.
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  • Kevin Beaver
    Sounds a lot like a malware infection to me. Clean one or two systems first - even if you have to wipe/reinstall - and see how that works.
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