Symptom
The TLS listening port configured for the MCU is different from the
TLS listening port configured for the SC. When the MCU TLS listening port is set
to the same as the SC TCP listening port, the MCU CPU usage becomes excessively
high if the MCU uses TLS to register with the SIP server.
Possible Causes
The MCU sends TLS signaling to the TCP listening port of the SC. The SC rejects to process the signaling because the protocol is incorrect. However, the MCU waits for responses from the SC, resulting in high MCU CPU usage.
Troubleshooting
Change the TLS listening port on the MCU to the same as the TLS listening port on the SC.