I have 3 client PCs running various versions of Windows and 1 file server, running Vista Home Premium 64. All 4 machines are using the Gigabit CT Desktop Adapter for connectivity. This server has previously been running Linux for 2 years and no hardware has changed, but I just installed Windows instead. My problem is this: WOL from any of the clients works perfectly, as far as waking up the server. However, I am then unable to connect to the server. When I go to the server and look in Device Manager, the network adapter has the exclamation point/triangle thing. If I disable the adapter in Device Manager, and then enable it, everything works perfectly. This happens every time it wakes from sleep mode, whether using WOL or waking it directly from the keyboard.
I never had this issue while running Linux, so naturally I suspect a Windows configuration issue or driver issue. Except, one of the 3 client machines is an identical copy, hardware and software (yes, and drivers), for the server, and it never has a problem when waking up.
This behavior started immediately after installing Vista so I really don't believe it's a hardware issue, although I suppose this weekend I could swap card to 100% rule it out. But if anyone has seen this behavior before, and/or has any ideas or suggestions on what I should look for to fix it, I'd appreciate it.
Thanks!