I've encountered the same problem as Sven N. (https://bugs.launchpad.net/ubuntu/+source/openconnect/+bug/1754601/comments/24), with the same Ubuntu 20.04 and OpenConnect version v8.05-1. After a few minutes, the "SSL read error" and "HTTP/1.1 101 Switching Protocols" appear reproducibly, connected clients hang or abort, and I had to cancel and reconnect.
What helped for me was switching from $ sudo openconnect --protocol=pulse ... to $ sudo openconnect --juniper ... Which is odd, because my company's VPN is Pulse Secure?! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754601 Title: openconnect has trouble maintaining a VPN connection To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1754601/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
