Network (VPN) conflict
22 Aug 2008
Microsoft Windows Mobile 5.0 and higher by default uses the new ActiveSync USB RNDIS (network) drivers to connect to a desktop PC. A secure network or virtual private network (VPN) can prevent or interfere with connecting to ActiveSync (Windows Mobile Device Center).
Without having to re-configure security on your network, you could try changing the Field PC to use the previous ActiveSync USB Serial drivers (which were used by default in Windows CE 4.2/ Mobile 2003 and older) by follow the steps below.
- On the Field PC, tap on Start > Settings > Connections tab > "USB to PC" icon.
- Uncheck the "Enable advanced network functionality" checkbox, and then tap OK.
- Attach the USB Client (ActiveSync) cable.
If you will be keeping this change, then you will probably also want to install the following patch.