I can play minecraft on server only in End, bcs when i enter portal its just kicking me out 

What I expected to happen was...:
Idk what was i expecting to happen randomly after 2 weeks of playing i could not play game in overworld.

What actually happened was...:
I am getting perma kicked out with message " internal exception java.net.socketexception connection reset"

Steps to Reproduce:
1. I dont know how to trigger bug i just need fix for it please
2. I tried a lot of videos and none worked
3. ...