Mac Pros normally connect without issues if there is nothing wrong with the router.
I think both Mac and Windows will try WPA2, WPA, WEP
1. However WPAx can be AES (newer) or TKIP (older) so do you know what the router is wanting?
2. Is someone in your vicinity using the same network name (SSID)?
> Turn off the wifi on your router and check if that network name still shows up.
3. In the Airport settings is there a tickbox which says that only an administrator may change the Airport settings (in which case when you try to connect another authentication box may be popping up but submerged, in that case the connection times out).
> Try dragging the topmost window to one side while it is trying to connect to see if anything is waiting for an admin password below.
4. Check the list of saved networks and their order..If your network has already been saved by Airport with a typo on the password it may try to connect with the wrong settings
> Delete the saved network before trying to connect. Only allow it to save your network name when it connects successfully.
5. If you use the Mac at multiple locations with common network names there may be a "more preferred" network with the same name as a neighbour but a different password.
In some circumstances, this may cause a timeout as the Mac tries and fails to connect to the other network in preference to yours.
> Again check the list of saved networks and reorder if needed.
Also, you may be able to use the "Network Locations" feature for more control.
prompt $P - Invalid drive specification - Abort, Retry, Fail? $G
prlzx on n e w n e t Max ADSL