We are seeing similar issues at our organization where we have set a Windows 10 Enterprise v1909 or newer goal, many of us have v2004 or v20H2 because Microsoft has been pushing 20H2 since around October 2020. I've had considerable luck here on the forums, so I thought I would ask the community for their experiences\advice before moving to a TAC case. Between our normal operations and the additional complications of covid, there is no way I can have our office without a stable VPN solution. I'm looking to do an OS refresh throughout our company, but not while I am facing this issue. The problem continued so I installed the Pulse Secure client 9.1r7 and still it continues. Thinking that this might be due to a bad upgrade I wiped the machine and performed a clean install of Windows 10 20H2.
This goes on for 10-15 minutes with multiple disconnects\reconnects before I get a stable connection. In some cases I have to restart the Pulse Secure service or reboot altogether. Sometimes this works, sometimes it doesn't. Within minutes I would get disconnected from the VPN and would be prompted to re-enter my credentials. Recently though I put a machine through an upgrade to Windand immediately began having issues with the client staying connected. While I have had a few issues here and there it has been mostly stable. Over the last year we have been running Windand the Pulse Secure client 9.1r2.