Why have you connected a server using wireless?
Try a newer driver or a different NIC.
You really should try to make this an ethernet connected server.
We have a computer in the network that is switched on almost every day. There is a folder in its hard drive that is shared with users of other computers. And it's installed with MS SQL 2005 Express Server that is used for a program run at other computers on the network. It connects to the network using wireless adapter. The problem we are facing now is that, after being left switched on for a few days (2 or 3), it suddenly couldn't be detected by other computers. We tried to ping its IP address, but there's no response. But after we restart the computer, it's available on the network again.
Does anybody know why this happen?