Status/ping fails when server has the BetterCompatabilityChecker mod

[nrgill28]

I'm using Gate 0.36.7 in lite mode to proxy to a modded server (curseforge) that I'm hosting, and although you can connect to the server fine Gate seems to fail to proxy that status/ping of it to show in the server list. I did a bit of investigating and it's likely that this is a result of one of the mods included in this pack that appends some additional data to the status response.

The error in Gate's log is two messages, a failed to try backend: failed to decode status response: decoder did not read all bytes of packet followed by could not resolve ping: all backends failed.

The mod in question is BetterCompatibilityChecker. If it's useful I also have a packet capture of the ping between Gate and the modded server, but GitHub doesn't seem to allow pcapng files here so if you want it LMK and I can upload it somewhere else.

[robinbraemer]

Hi, you can share a file.io of it. Thanks

Which Minecraft server version is that?
Does classic Gate non-Lite respond with a pong correctly?

maybe related to Lite not having this yet

gate/pkg/edition/java/forge/modernforge/modern.go

Line 27 in ee89f5b

return "\000" + Token + strconv.Itoa(natVersion)

[nrgill28]

The server is a 1.20.1 server with Fabric, I have not tried it in non-lite mode.
Here's the pcap: https://file.io/PI06hr2s7v4D

[JamesQuinley]

Wondering if there are any updates on this. Currently having a similar issue with a forge 1.20.1 server.