Hi,I'm having a very similar problem.I have solved by adding the EXACT
URL for the SSL VPN to the Trusted Sites in inetcpl.cpl. EDITED to add:
this may be relevant:
Hi,I have solved this issue many times on Windows 2016 Server by adding
the exact URL (also include custom port if needed - e.g.
https://mysslvpn.domain.dom:10443) for the SSL VPN to the Trusted Sites
list in Internet Options (from IE or by running "...
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