Best answer
NoobMaster
Actually, it might be simpler than you think - your friend needs to accept the game's invite through the in-game menu, not just through Steam or Xbox notifications. Missed that the first time myself!
All answers
ServerGuru
Servers might just be down, happens more often than you'd think with new games. Check Palworld's official Twitter for any server status updates.
HonestAbe
Is your friend's game even legit? Remember, Palworld won't let pirated copies join legit ones for multiplayer. Just saying.
GamerGal123
First off, make sure both of you have the game updated to the latest version! Palworld often pushes updates that can affect multiplayer, so having different versions might be the issue. Also, check your internet connection, as a weak signal could be the culprit. Lastly, confirm that you've both set your game to 'online mode' in the settings; this is a common oversight but an easy fix!