Codec losing UI subscriptions with control system?

[Theodore Parshall]

We have a Codec Pro+ that is working in tandem with a Crestron control system. We are using several custom widgets in the codec to trigger events in the Crestron processor.

After a period have time, it has been discovered that the codec will drop UI extension subscriptions (therefore events aren't triggered in the Crestron control system). Other subscriptions remain in place; only UI extensions are affected. If we re-subscribe manually, they will work until they are dropped again. There is nothing in our Crestron code that would de-subscribe from these items.

Is this a known issue with certain firmwares or has anyone else encountered this?

Hardware: Cisco Codec Pro+

Firmware: ce 9.15.3.18 fd1dd3b86f9 2021-05-18

[Jonathan Schulenberg]

I vaguely recall a Crestron programmer stating that this happens if the serial/telnet/SSH connection closes between the controller and codec. He had to configure it to resubscribe each time the connection (re)established.

[Theodore Parshall]

Thanks for the reply. The modules we're using in the control code do re-subscribe if the connection to the codec is ever lost and re-established.