Can't join Servers in 1.16.1, but can join Servers in 1.16

Can't join Servers in 1.16.1, but can join Servers in 1.16

What I expected to happen was...:

That I successfully join the Server

What actually happened was...:
I kept getting disconnected

Steps to Reproduce:
1. Open Minecraft 1.16.1
2. Join a minecraft Server