Realms Wont Work...

Whenever I try to log in to a Realm with my friends I can be on the Realm for 3 seconds then it says, Internal Excerption: java.ioIOException: An existing connection was forcibly closed by the remote host. Ive done everything what the officail minecraft website says to do, including going to your discord and getting help, also switching versoins. Ive tried to fix it for a straight 5 hours, please find a way to fix it!