After turning on SSL Mode on the primary hub UMP is no longer connecting to the primary hub.
In the UMP controller.log we see
Dec 20 15:32:27:867  Controller: sockConnect - SSL connect to 10.1.1.1/48002 failed
We also see high CPU usage on the primary hub and some probes are not gaining a port number.
At this time, only "Normal" SSL mode is supported on the primary hub. Certain probes on the primary hub and UMP server are unable to connect via SSL which will prevent them from starting.
When SSL mode is activated, it will propagate to connected robots and modify their robot.cfg
In the UMP's robot.cfg please change the following keys to match:
ssl_mode = 0 ssl_cipher = DEFAULT
Then restart the primary hub robot and the UMP robot.
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