one of the member server running win 2003 adv with sophos virus application .
server is not accessible from the remote connection or from the server itself . server ip is responding . server machine is some times get stuck . when we restart the server everything back to normal for some time ( 2- 4 hours ) . try to restart the server with advance option . it didn't respond to F8 or f12 . server monitor connected to the KVM switch ?