Perforce VCS root SSL handshake issues

We are moving or P4 to SSL and of course had to update the P4 client on my agents to a version that had trust support which is fine, however setting up or updating a VCS root fails with:

ssl handshake: error:1409442E:SSL routines:SSL3_READ_BYTES:tlsv1 alert protocol version: unknown network error 0" - while running "p4

I just updated to the latest TeamCity (2022.04.1), updated Java to 11, now have Perforce Helix Core as a VCS option which is great, but it still does not work.

What else can I try? This is a massive blocker for us.

I have referenced this post already


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In case of Perforce, P4 client should be updated on both TeamCity server and agents.

If it does not help, please find the entire error in the teamcity-vcs.log and post it here.


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