Can't Stay Online

Computer works fine, fast, etc., but won't stay online. Not a server issue (did this on Earthlink dial-up, and now with different broadband ISP). Will stay online 2-20 minutes, then boots me off with no warning. Restart usually fixes the issue for the next few minutes. Error messages include: "Your server has unexpectedly terminated the connection…", "The host…could not be found…", or "A time-out occurred while communicating with the server…". Have tried about 15 different anti-spyware, etc. programs, have dumped Norton, have loaded Security Task Manager and researched every process running, etc. etc. NOTHING works. Any ideas???

I'm going to guess that your NIC card might be failing. Are you going through a router, or just your broadband modem?

Well now, that's a new one: what is an NIC card? Computer is only about 15 months old…don't know if that would matter….am running straight through the broadband connection, no router. Actually, am running pretty much OK now. Stays online w/o much problem now, though I often do have to reboot in the morning, or if the computer hasn't been "used" in a while…don't know exactly what I did, just kept "tweeking"…

NIC means Network Interface Card Its where the Ethernet cable plugs into the computer. I'm glad things seem to be working now!