Minecraft PE server not joining after having a good internet

Hii MINECRAFT Team,
So,my problem is with the connection issues with the servers.I play the Minecraft PE version with mobile data with mobile data I am only able to connect to the server lifeboat and if I want to connect to othe servers for example:- Nether server,cubecraft,venity . I have to connect with a wifi then it is possible for me to connect to the other servers.Now I don't have the wifi for some reason and I want to play the servers with my mobile data but it always shows that you are disconnected from the server.

I just want that please fix my problem of disconnecting form servers while using the mobile data. I used all the solutions but they didn't worked.

I just really want that I can play on servers like:- Nether server, cubecraft, venity etc while using my mobile data I have enabled all the options for mobile data but still can't connect to the servers.

SO, PLEASE HELP ME SO THAT I CAN PLAY ON THE SERVERS WHILE USING MY MOBILE DATA.