I've reset my router (Dlink DGL-4100) and cable modem, but this keeps popping up in the console every 10 seconds and on top of that my internet access is bad, this started happening 2 days AFTER i installed Leopard and nothing was installed prior to this happening!
11/8/07 10:02:11 PM SystemUIServer[200] Error: ACInterfaceCreate() no AirPort interface found for en1
11/8/07 10:02:11 PM SystemUIServer[200] Error: ACInterfaceCopyStatus() called with invalid interface
11/8/07 10:02:16 PM SystemUIServer[200] Error: ACInterfaceCreate() no AirPort interface found for en1
11/8/07 10:02:16 PM SystemUIServer[200] Error: ACInterfaceCopyStatus() called with invalid interface
11/8/07 10:02:16 PM mDNSResponder[17] handleLNTGetExternalAddressResponse: Router returned bad address
11/8/07 10:02:16 PM mDNSResponder[17] Error getting external address 3
11/8/07 10:02:16 PM mDNSResponder[17] handleLNTGetExternalAddressResponse: Router returned bad address
11/8/07 10:02:16 PM mDNSResponder[17] Error getting external address 3