Error permissioning.prod.cmix.rip:11420 failed: context deadline exceeded

This message on the node server:

INFO 2021/01/08 15:05:54 Connecting to permissioning.prod.cmix.rip:11420. Attempt number 1 of 100

ERROR 2021/01/08 15:05:56 Attempt number 1 to connect to permissioning.prod.cmix.rip:11420 failed: context deadline exceeded

Restarted but no effect

Restarted the whole machine, not only the node service, and it is working again…