My Friends Can not join my minecraft forge server correctly with timed out or disconnected screen ?

[PURPULE]

wil i did evreything i configured port forwarding and firwale rules and the server port as the default one. i tried 1.8.2 1.19 and even 1.20.1 and after i removed all the mods it didnt work 

when they join they are actually can see what is in the server but they can not move then they get timmed out or disconnected screen

even when i tried to move them or hiting them the dont move theare just floating or freezing idk pls help me this server took me weeks to make

Edited September 18, 2023 by PURPULE

[Linksapprentice]

I used to have the same issue, it’s often related to mods that have a high packet size or just plain world corruption. Could you send your mod list?