Direwolf20 1.16 1.6.0 Cannot connect to server

[matty2532]

I am playing the Direwolf20 1.16 pack with version 1.6.0 of the pack.
This issue was also found using version 1.5.1 of the pack.

I try to connect to a server.
After some time, I get the message "Failed to connect to the server. Disconnected".

I have checked the debug.log log file, however there are no errors reported.
The connection seems to just stop during the FMLHANDSHAKE stage of connecting, with no errors reported in the debug.log file.

There are plenty of others that have joined the server and have not had any issues.
I have checked that the ip is correct and that the server is not using a non standard port (the server is on port 25565).

I have attached the debug.log file to this post as a .txt file.
I am on Windows 10 64-bit running Java 15.0.1.

 

[matty2532]

I found a fix.
I ran my own server on my machine and tried to connect to it.
The server was giving me the error message "lost connection: Took too long to log in".
A quick google and I found out that the server isn't giving my client enough time to authenticate through Mojang's Login Servers.

The Random Patches Mod fixes this issue.

https://www.curseforge.com/minecraft/mc-mods/randompatches-forge