OS Name/Version:
Ubuntu 20.04.4 LTS
Product Name/Version: (Always use the full version number - not ‘Latest’)
AMP Release "Triton" v2.3.3.4
Problem Description:
My Friends cannot join without getting the Error “Failed to verify username!” in the console. (can join other servers)
The Server mysteriously works for me, but only with my main Account.
If I use a Hacked client with an Alt Account I get the same error (works on other servers)
Steps to reproduce:
(Not known)
Problem appeared on fresh install
Actions taken to resolve so far:
-Checked DNS Resolution of Host and Docker
-Checked Ping (Host & Docker)
-Changed Instance from Host to Docker version
-Created New Instance
-Used Different Version and Distribution
-Created a Server on my Local Computer (Worked like a charm)
-Reinstalled my friends Minecraft client (tried MS Store and Installer)
-My Friend Re-Booted and Re-Logged
-Used my Public IP Instead of Domain
-Checked Firewall Logs (temporarily opened completely → did not help)