Can't access any shared folder

Hi,

I have a 2003 windows server and there is a problems on it that I can't access any shared folder on the network, when I try to access any shared folder I got this error message "a device attached to the system is not functioning" so how I can know which device made this error and in the same server there is another problem which I can't access the internet or another application can access the internet.

NOTE: I can access the server using RDP and I can ping the local host and I can ping my gateway.