Fail to install and configure Nextcloud Signaling + Coturn

testing from Trickle ICE , all of this test return the same error: “returned an error with code=701:”

  • turn:coturn.mydomain.tld:5349
  • turn:coturn.mydomain.tld:443
  • turn:coturn.mydomain.tld:443?transport=udp

It seems that the problem come from Coturn.

Anyone has an idea on how to configure Coturn?