Username "no username"

After installing the jitsi-meet on a clean ubuntu 18.04, I observe some problems while connecting to the room.

  1. The room is loaded for a long time, in comparison with
  2. After entering the room the username but “no username”, after 5-10 seconds writes the username “me”. if you set a name, and go into a new room, then first there will be a tree, then after 5-10 seconds the name I set will be