Friend gets timed out when joining world.

[MrBlyatWasTaken]

So, me and my friend made a modpack with a few 1.12.2 mods we consider nice to play with on an opened SP world using Hamachi. At the start, everything worked perfectly fine, but, after a day, when our world was already more progressed and we were starting to get into Galacticraft and Mob farming, when he tried to join or got killed he would get timed out and would be kicked without even rendering chunks. We figured he could join if we were on different dimensions at the time of joining. After he joined, it worked fine in all dimensions, the problem is when he dies or logs in. If he logs out at a dimension that isn't overworld I can't get him to join without getting kicked for some reason.

Please help why, this is his logs folder when this occurs: https://pastebin.com/vni0qjyt

By the way I hid the ip and file path because he asked me to.

By the way my logs folder just says he joined, got timed out and left.

It's like 30 lines of that. It says it's galacticraft but I really don't want to get rid of the mod! Please help.

I really don't know why. By the way, this are all the mods on the modpack folder: https://imgur.com/a/BqncJpW

By the way we have both the same mods, he made a .zip folder of those mods and sent it to me. He has a computer with an i3 9100F, GTX 1660 and 8GB of RAM, so thats not the problem, he has allocated 6GB of RAM for the modpack and I have allocated 8, so thats not the problem.

[dj3520]

My experiences with Hamachi have left a lot to be desired. Have you had anyone else attempt to play this way? Also maybe I missed it but I don't see where Galacticraft is getting the blame for this in his logs. Might help to see your logs as well.