Same here. It seems very random and then when we try to reconnect it gives this error:
incompatible_unique_net_id
The only fix seems to be restarting the server.
I installed a separate Palworld server via SteamCMD, copied all the server files from AMP to there and now it’s running perfectly fine. So, it must be something in AMP (maybe a certain setting or parameter that comes along that causes this).
Am running AMP 2.8 on Windows Server 2025.
Edit: This update might fix it if I understand correctly: AMP 'Proteus' 2.8.0 Release Notes - #3 by IceOfWraith