I am using a Sierra Wireless MC8790 integrated 3G module, which gives no problems on a normal Internet connection.
I am able to connect to our VPN using the secure matrix, and can work online in that way for a while, but after some time, the connection seems to stall, and no further operation is possible. No error messages are generated by the Juniper Network Connect software so I have no indication that anything is wrong, apart from the fact that attempts at accessing functions and loading pages are unsuccessful. The green lights on the small padlock icon in the system tray also indicate communication only from one side, with no response from the other.
I also connect to the same VPN using my wired LAN connection, and never experience any of the above issues.
Can anyone offer any suggestions as to what is causing this issue and how I can fix it?
The symptom seems to suggest some kind of compatibility issue between the "Sierra 3G Watcher" software which is used to establish the Internet connection, and the Juniper Network Connect software.