Message in android: connecting in X seconds

Please guide me in the right direction to solve the problem. Authorize myself and go without problems. When connecting the client (2.5.1. 2036) constantly writes “connecting in X seconds” and messages do not come and I can not write anything. Users I can search. I can not create a room.
Through the “Chrome” on Android, it works well

SSL certificate from “Letsencrypt”.
Server Version 0.68.3 + nginx

I think reregistring the server on the client will solve the issue.
When registring new please pay attention exception message about the certificate if there is one.
Hope it can help.

  • there is no such

how can i induce it? How to do it, please inquire?

You can uninstall and install rc app on your phone.
After the new installation regiter the server.