SSL VPN + GotoMeeting

I have a pair of 100D's running SSLVPN at version v5.4.1,build1064 (GA) 

Sometimes when our users are using GotoMeeting or GotoAssist their SSLVPN traffic will drop. The Forticlient does not show a disconnect but the traffic dies for a bit then re-establishes. Outlook loses connection, Shoretel Communicator  loses connection, etc....

Anyone else experience issues with their Forti SSL VPN while using GotoMeeting or GotoAssist?

Thanks