Mod Loader (Required)

Forge

Minecraft Version (Required)

1.20

Mod Version (Required)

BagOfHolding-v7.0.0-1.20-Forge and PuzzlesLib-v7.0.9-1.20-Forge

Notes (Required)

1. Copy BagOfHolding-v7.0.0-1.20-Forge and PuzzlesLib-v7.0.9-1.20-Forge into the MC Forge 1.20 Server and the MC Forge 1.20 Client Mods folders.

2. Start Server (Server Log attached)

3. Launch OptiFine 1.20-OptiFine_HD_U_15_pre3 Installation from Minecraft Launcher v. 2.4.104-1.2.16

4. Minecraft 1.20 Landing Page is loaded (Image attached)

5. Click on Multiplayer button and load Server List (image attached)

6. Click on MC Forge 1.20 Server to run and get INSTANT "Failed to connect to the server" error message (image attached)

7. Same error on the Server side:
   [13:15:57] [Netty Server IO #2/ERROR] [ne.mi.ne.NetworkRegistry/NETREGISTRY]: Channels [iteminteractionscore:play,bagofholding:play] rejected vanilla connections
   [13:15:57] [Netty Server IO #2/INFO] [ne.mi.se.ServerLifecycleHooks/SERVERHOOKS]: Disconnecting VANILLA connection attempt: This server has mods that require Forge to be installed on the client. Contact your server admin for more details.
   [13:40:51] [Netty Server IO #4/ERROR] [ne.mi.ne.NetworkRegistry/NETREGISTRY]: Channels [iteminteractionscore:play,bagofholding:play] rejected vanilla connections
   [13:40:51] [Netty Server IO #4/INFO] [ne.mi.se.ServerLifecycleHooks/SERVERHOOKS]: Disconnecting VANILLA connection attempt: This server has mods that require Forge to be installed on the client. Contact your server admin for more details.

8. Not sure why this isn't working, it has always worked in the past, however, this is a brand new server, so I'm sure I've done something wrong. Anything you can do to help is much appreciated!

Server Log_06.19.23_1.15 PM.txt
Latest Client Log_06.19.23_1.15 PM.log

Crash Report (Required)

I don't have a Crash-Report Folder (Image attached)

latest.log (Optional)

No response

Thanks for reporting!

So this looks a lot like everything is behaving as it should. Only having OptiFine installed on your client is not enough to use Bag Of Holding on a server. You need to either install the mod on your client, too, or remove it from the server.

I'm not sure what you had going on with your previous setup, but having Bag Of Holding just on the server should have never worked.

I have Bag of Holding on both my Server and my Client. OptiFine is a client only mod and is only installed on the Client. Are you saying I need to remove OptiFine?

Is it possible you are launching the wrong profile from the game launcher (OptiFine instead of Forge)?

The client log you provided is an OptiFine log, Forge is not installed, hence no other mods are loaded. Also your main menu screenshot shows no sign of Forge being loaded.

I installed the Forge server and client, but I use the optifine launcher so that I can have optifine in my world. But it's still Forge. Are you saying if I want to use my mods, I can't have optifine? I used to have both with my 1.18 server.

You generally can, but you need to launch from the Forge profile and put the OptiFine jar into your mods folder.

Closing this now since this simply comes down to a profile without Forge being launched on the client.