User Notice at /usr/share/mythtv/bindings/php/MythBackend.php, line 105:
!!NoTrans: Unexpected response to MYTH_PROTO_VERSION '75': !!
User Notice at /usr/share/mythtv/bindings/php/MythBackend.php, line 127:
!!NoTrans: Failed to set php timezone to !!
What version did you upgrade from? Did you upgrade MythWeb, and the PHP bindings, to match the upgraded backend? Are you seeing similar connection failures in the frontend?
I had not observed but the frontend was also slow so I rebooted the whole system that solved the problem. (I try to reboot the backend and apache cella had nothing changed).