There's been some new observations on this. When the SSL connection error: socket layer receive error (2026) error occurs, it's always the same Kamailio-process that encounters it, I've tried to restart Kamailio numerous times and it's always the same one (not the same pid obviously....):

Process::  ID=10 PID=27816 Type=timer

I can verify that this process can perform (at least) one db_insert/db_query before this error occurs.

I can also verify from debugs that other processes are able to use the SSL database connections while the timer process cannot.

From what I can see once this error happens, the timer process cannot recover/reconnect and the SSL error does not go away until Kamailio is restarted.

Any hints on how to debug further are appreciated.

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