Hi @Hypnomez
First of all, Sangoma Talk certificate (Run domain action) is entirely different then Sangoma Desktop client.
If you are facing an issue in Desktop client then please try to restart the haproxy in the freepbx system.
systemctl restart haproxy
I am suspecting , your PBX certificate might have got renewed recently and haproxy might not be potining to the latest cert, hence restart is required.
We have an improvement in queue to implement to auto restart haproxy as soon as PBX certificate gets update.
Best Regards
Kapil
