Ok this is long so bare with me. I am gonna try to explain the best I can what has been happening and some of the things I have tried to do to fix it (and it is a lot).
The network was replaced about a year ago since then no problems until about a month ago. Around that time users started losing connectivity to the network sporadically they would work fine for a couple of hours and then bam would drop connection. You can not ping the server or the gateway for the internet, you can ping another client on the network once and then you would be able to ping the server again or if you wait for 10 min to a hour the connection would re-establish itself. At first it happen to 2 machines then to 5 then to the whole network. There is one computer on the network that has never had any of these problem to this day it gets on works all day has never dropped the network connection. BTW there was a virus on the network moo.moo but I found and cleaned it.
Ok now for stuff I have tried
Scanned for viruss with Nortons and Stinger tool from Mcaffe Found one and cleaned.
Ran Ad-ware and Hijack this. Found A LOT of spyware and removed it all.
Check the Reg. Found spyware in there removed it all.
Had a w32 Time error fixed that and setup clients to use local server as trusted time server, set server to use a trusted time server in Houston no errors since I have done this.
Removed and join machine from domain
Renamed old profiles and made new profiles for users
The only thing that seems to be working is I have changed out the network card on machines and that seems to have help with the 2 machines I have done. I think that might be the problem but 11 network cards going bad at the same time seems to be a stretch.
Change out the switch for a weeks same problem occurred with new switch.
Checked all the Cat-5 cable lines all ok.
Specs. On the network
2000 Server with SP3
XP clients with newest SP
Protocals on network TCP/IP 192.168.1.X subnet
Cisco 506e Firewall
DSL connection to the Internet
If you need any more info just ask and will answer for you.
Thanks
Bill
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