gf can generate the world but if she leaves and rejoins she dc after a short time

## What I Want to Achieve
client to server in network connection without dq

## Current Setup
1.21.1 server and client.

## The Problem
Gfs client is able to connect to server to generate word file but if world file exist loads in falls in a void and dc after 30~ish seconds

## What I've Tried
started neoforge custom pack.
stripped the pack and client.
set up port forwarding to check for client block in network.
looked through network settings to find any client block and make sure ports were allowed through in network.
reset both devices separate firewalls and reconfigured them.
fire wall on the server device has java and javaw allowed public & private.
firewall has port open
tested server device is configured to listen on network through netsh.
checked ping from client device to server
DELETING THE WOLRD FILE
if i delete the world file the client is able to join and move. if i generate the world or they generate it, leave, and rejoin the issue persist


## Specific Questions
can someone join me in a call and make sure im not crazy at this point. I just want to know what the issue is so I can try to fix it or at least know to give up.

## Additional Information
client gives netty code 0-20 it seems random creates report file and then dc. clients only log is timed out. I didn't provide the log for the client cause its on a other device and seems to gives different report everytime. if you still want it i can provide