I upgraded my Airport Express to the N-spec Airport Extreme card this morning, and have since had a lot of trouble connecting either my MPB and iMac to our Windows Web/Java server on our local network.

The macs recognize the Web server on the network, but when I log-in, they both come back with "...the original item cannot be found" Error. I however, have no problems connecting to our windows file server or other computers for that matter.

Anyone having similar networking issues since upgrading to Airport Extreme Cards?