New Vista computer totally slows down network

April 24, 2009 at 10:59:40
Specs: Windows XP and Vista
I have a network with three XP computers on it, hardwired. Everything was working fine until I bought a new PC the other day and hooked it into the network, immediately the XP computers get totally bogged down, while the new Vista PC works just fine. As soon as I unplug the network cable from the Vista PC, the XP PC's go back to normal opeating speed. One friend suggested it had to do with the McAfee security suite trial that came preloaded on the new PC, that it was somehow testing the network and causing the slowdown, so I uninstalled McAfee, yet the same problems still occur. This is a total pain in the butt, as I need to get the new PC up and running ASAP! I should add that I do have a Vista laptop that I use on the same network (but it connects via the wireless, not via a cable) and I have never had any problems with it crashing the network. Any help is much appreciated!

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April 24, 2009 at 11:16:24
what are you cabled to? Hub, router, switch?

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April 24, 2009 at 13:17:57
I have a Cisco "10/100 8 Port Workgroup Switch" that is connected to the dsl modem, then from the switch run the cables to each of the computers

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April 24, 2009 at 14:18:49
Start at all machines taskman for network speed.

Install wireshark and view data.

More likely a virus/malware/spyware on the xp machines rather than a McAffe product.

"Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10

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