I have a customer that many of his VPN SSL clients are disconnected many times during the day. In the GP logs (pan_gp_event.log) I can found : "Tunnel is down due to socket closed"
GP Agent : 5.0.8
Before updating the agent or switching to IPsec, Is there a VPN SSL "mode" BUG in that specific OS/Agent version ?
are these users on cable or wifi,
I only ask as we had a similar issue with the same socket closed error but it was OK when the user connected to their router via a cable, we installed a different wifi interface driver and this resolved the issue.
there was a pointer to this failure in the windows event log, perhaps look there for some other clues.
Do you have HIP Checks enabled? If you do and are not using them, un-check the "collect HIP data" on the portal settings. As this, even with Always on, enacts the inactivity timer configured under that gateway. We encountered a similar constant drop in connection when leveraging SSL, disabling HIP collection corrected it. Seems like the expected behaviors do not always function as expected.
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