Server (Linux Mint)
Clients (4xWindows 10 and 1xArch Linux)
Lets focus on one Person (Windows 10), at first he used a Firewall which did block receiving some things, Teleportation didn’t work except he rejoined. After disabling the Firewall it worked for a few minutes and didn’t time out. Teleportation did work always instantly without issues. But he does still randomly timeout. Sometimes in a second or a minute. He uses LAN.
For other 3 People (2xWindows 10, 1xArch Linux), everything works perfectly fine.
Here are some more information I could grab through Discord Screenshare.