In the mod loader it says very specifically that the Patch needs to be at the top of the load order in order for it to work same as Highloot being above SynergiesMod. So it should look like this:

Essentials Patch
TL2 Essentials
SynergiesHighloot
SynergiesMod

I'm having similar issues trying to play with my kids. Vanilla TL2 works just fine with multiplayer, but once I enable the mods, the person I want to play with can't join my game. They can see my game if they look under my name in the friends list, but can't join.

What is really weird is we played for several hours yesterday with no issues, but today we can't get it to work correctly.

We're both playing on Steam, with the same mods enabled in the same order. Any help would be greatly appreciated! Both my kids and I really like the game and we love this mod!

Originally posted by Squishygiblets:

I'm having similar issues trying to play with my kids. Vanilla TL2 works just fine with multiplayer, but once I enable the mods, the person I want to play with can't join my game. They can see my game if they look under my name in the friends list, but can't join.

What is really weird is we played for several hours yesterday with no issues, but today we can't get it to work correctly.

We're both playing on Steam, with the same mods enabled in the same order. Any help would be greatly appreciated! Both my kids and I really like the game and we love this mod!

Make sure all the mods are in the correct load order in order for players to be able to actually join the game.

Yep, I've done that. Same mods, in the same order.

Originally posted by Squishygiblets:

Yep, I've done that. Same mods, in the same order.

Yeah it seems their servers are taking a dump, using a tunnel program if you can't already make a LAN game will solve this problem fast and easily.

RadminVPN
Hamachi
etc

Having this same issue. No problems with vanilla. Hamachi doesn't work either.

Everyone in group allowed TL2 through Windows Defender, or their Firewall, etc? Not sure what else it'd be as this is what I've had all my friends do and it works.

Originally posted by Allien:

If I use the mod (v1376), it have trouble connecting with host (have Problem with firewall, fail to connect). If I disabled it, or don't use it, Torchlight 2 able to play in multiplayer again.
Few scenario that I tried:
1. Only SynergiesMod -> problem
2. Vanilla -> multiplayer working
3. Mod Launcher without mods -> -> multiplayer working
4. SynergiesMOD + Torchlight 2 Essentials + patch + Highloot -> problem
5. SynergiesMOD + Torchlight 2 Essentials + patch -> problem
6. Torchlight 2 Essentials -> multiplayer working

Okay so I just now got into a multiplayer game while using this mod. We had issues and this is the solution:

All players must have the same mod and have them in the same order in the mod screen.

This worked for us, hope it works for you. Good luck!

A friend and I literally only tried running with synergies and it worked once, now it doesn't after adding a mod to the load order, we even removed the mod to confirm synergies was working by itself and I can't join his game, there is an issue with synergies that isn't being addressed.

Originally posted by RiFF:

Originally posted by Squishygiblets:

Yep, I've done that. Same mods, in the same order.

Yeah it seems their servers are taking a dump, using a tunnel program if you can't already make a LAN game will solve this problem fast and easily.

RadminVPN
Hamachi
etc

Re: MULTIPLAYER ISSUES - I had this problem for months and even did a bunch of research and tried so many of the solutions, only to have none of them work.

The most ridiculous answer on how to fix it, was actually the right one.

Here it is:

UNFRIEND AND RE-FRIEND THE PEOPLE YOU ARE DOING MULTIPLAYER WITH EVERY TIME YOU START A GAME

The multiplayer works perfectly every time after you've done that. Remove them, add them back, poof, stuff works. So dumb, but completely true.