Possible fix* for ActiveSync issues

[santod]

Uninstall the Windows Mobile-based Device from the
network adapters section of Device manager on the PC.

control panel -> system -> hardware tab -> device manager button

restart pc and plug in the phone via usb and select active sync.

The reason this may work in your case, is Windows installed the general rdnis driver however each device has a different instance installed and thus the one device can have a corrupted driver yet the other works perfect. As seen from one flashed rom to the next. They each register a new hardware instance.

Maybe this will help some of those who may be having issues connecting through ActiveSync, especially on the newer roms it seems. Or maybe not. Just thought I'd throw this out there. Hopefully it does help resolve the issue for someone else.