I have a client using an Asus Notebook. He connects to a D-link DWL-2100AP wireless access point. He is using Windows Vista. Yesterday he was working fine and today he can't see the wireless network.
Viewing available networks shows 7 other networks in the area but his one isn't in the list. There are 8 other users of the network who are working fine. One other user on a desktop PC had the same problem this morning, after much fighting with it, I changed the wireless network card and it worked instantly. This led me to believe the MAC address had been blocked....nothing blocked on the router. I changed my test notebook to his MAC address and I still have access. I have restarted the AP and notebok, the diginet router for the internet connection and stopped short at throwing the notebook out the window. Any ideas?