NetExtender connects but some (but not all) users can't access network resource

I have a SonicWall NSA3600 with 20-30 users connecting via SSLVPN. I recently increased the licenses from 29 to 54. I have an odd issue where some users can get connected via SSLVPN via NetExtender, but they can't access any of the local network resources. It doesn't happen to every connected user and in most cases, they were previously able to connect and have complete network functionality. Anyone else had this issue?