Astroneer. Failed to Join session

My friends haven’t been able to join me on ARK Survival Evolved (Non-Dedicated Session), Astroneer, Kingdom Two Crowns and there may be others I don’t remember.

The weird thing is that sometimes they can join me on those games and other times they can’t and it says “Failed to Connect”.

Witaj NikodemWiszniewski,

Przykro mi, że masz problemy z grą w Astroneer. Oto kilka sugestii, które znalazłem podczas przeszukiwania forów:

1. Sprawdź ustawienia zapory: Upewnij się, że zarówno Ty, jak i Twój znajomy macie grę zatwierdzoną w ustawieniach zapory sieciowej
   
2. Jeśli grasz w trybie wieloosobowym, przejdź bezpośrednio do trybu wieloosobowego po załadowaniu gry. Nie przechodzę do trybu dla jednego gracza, nie zamykaj gry, a następnie dołącz do trybu wieloosobowego. Jeśli grasz w trybie dla jednego gracza i chcesz grać z innymi, zamknij grę całkowicie przed ponownym uruchomieniem. Wydaje się, że pomaga to większości graczy w tym problemie.
   

Jeśli masz więcej problemów, możesz odwiedzić ich stronę pomocy technicznej https://astroneer.space/support/ i dołączyć do ich discord lub forów.

[Używam tłumacza, więc mogą wystąpić błędy z powyższym tłumaczeniem]

Hello NikodemWiszniewski,

I am sorry you are experiencing issues playing Astroneer. Here are some suggestions I found while searching through forums:

1. Check your Firewall settings: Make sure both you and your friend have the game approved through your firewall settings
   
2. If you are playing multiplayer, go straight to multiplayer after loading the game. Do not go to singleplayer, quit, then join multiplayer. If you are playing singleplayer and you want to play with others, close the game entirely before starting it again. This seems to help most players with this issue.
   

If you have more issues you can visit their support page https://astroneer.space/support/ and join their discord or forums.

I as well have been having this issue

specifically

I am able to join random players via quick match functions

however myself and a friend are unable to join eachother

im summary it says its searching for a session to join

and returns with failed to receive response, could not join session

the strange thing about it to, on a rare moment, we were able to play a campaign, upon calling it a day and trying to join up the next day..no dice.

I keep getting this message too!

Along with the following:

Lost connection to host

Game lobby full

The selected session was full or the join operation has failed.

Disconnected from Xbox Live

Failed to allocate from element pool