Can't connect on Aternos server

Hello,

I'm using Minecraft Java as is my friend who plays on the server. We have a vanilla server setup on Aternos but for the last few days we can't connect to it when opening Minecraft.

The error message within Minecraft that appears is "Server failed to connect...incompatible client".

We're both running version 1.19.2, the same as the server.

The latest snapshot is 22w43a.

Any ideas where this could be falling over? It worked fine until recently.

Thanks in advance!

Thanks, will try without the snapshot and test it.