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hello, I have that problem to sing in to my server, already tried almost everything, flush & change dns, check mods, try DynIP, erase config folder, change the user name, erase my user data of the server, etc, etc, Idk what is the problem and didnt find anything to solve it.
I think the error is not in the server, but in my minecraft launcher, here the log of my .minecraft
You need the same mods in the exact same versions on your client and server.
yes, I saw that I had a different version of forge, but I corrected everything, and verified that I had the same mods and everything the same, but....
Solved in Discord.
(Mod didn't match)
