Forge & NeoForge Handshake #90
Description
When players using the NeoForge mod loader attempt to connect to LimboService as a limbo/fallback server (via Velocity), their connection is immediately rejected with the following message:
You are trying to connect to a server that is not running NeoForge, but you have mods that require it. A connection could not be established.
NeoForge clients should be able to remain connected to the network via the Limbo/fallback server, or at least a compatibility/fallback handshake should allow them not to be kicked until they return to the main modded server.
Additional Info
- Velocity forwarding and all proxy settings are set up correctly.
- The problem occurs only with NeoForge (and likely Forge) clients, not with vanilla or non-modded clients.
- There is currently no Velocity plugin, LimboService plugin that can spoof a compatible NeoForge handshake to keep the client connected.
- The issue relates to the fact that the LimboService does not implement the Forge/NeoForge handshake protocol, so the client sees the server as incompatible and disconnects.
Suggested Solution
- Implement optional support for responding to NeoForge/Forge handshake requests within LimboService, to spoof minimum compatibility and prevent modded clients from being kicked immediately.