Whilst trying to find out who is connected to the Check Point Gateway using mobile access/SSLVPN I found a few neat commands that comes in handy.
First and foremost; who is connected to the gateway using SSLVPN: listusers

And also to stop, start and restart the mobile access services
cvpnstop
cvpnstart
cvpnrestart

The commands are of course documented https://sc1.checkpoint.com/documents/R77/CP_R77_Mobile_Access_WebAdmin/96290.htm.