Hi
My macpro is inside a cupboard with plently of ventilation, but poor wifi signal. I have added a D-Link DWA-140 on a long USB cable, and I get a good wifi signal from it (90%), and the drivers seem to work fine under Mountain Lion - the System Preferences Pane works. However, using the DWA-140 to ping my router, 192.168.1.254 (or an external IP, like www.google.com), gives some duplicate responses (DUP!) - the subnet seems correct (255.255.255.0) and the IP address from DHCP is fine (192.168.1.105). This seems odd - it does not happen if I use the built in wifi card?
Any help gratefully appreciated.
Shaun