A computer of in the network has started behaving very bad. It connects to the network without any problems and get a valid IP-adress from the router. Then I try to start either Firefor or IE, but when I try to surf I just get "Cannot find page". I then open the command window and try a ping frmo the DOS-prompt, no problem. I try a tracerout from the prompt, no problem. Then I try with a FTP-session frmo the DOS-prompt but that one fails to connect. So it looks like the DNS is working at least. Next thing I discovered was that iTunes on the machine could load up and fetch an update from the web and install that. I then tried to update the anti-virus program, but only got "could not connect to server"
OK, maybe I have a virus in the machine. Made a complete scan of the computer with zero viruses found. I can also add that this is the only machine in the network that have this problem, the others works just fine.
So now I am out of ideas, and hope that someone else has some got ideas to try out.
Edited by DrBubba, 07 August 2010 - 05:14 PM.