The connection to the game failed (12001)

[Maj. Herb-Head]

Hi everyone.
Don't know if anyone else has this issue.
Game has been working fine with no problems until an update (approx 100Mb) was installed earlier today.
I can join ANY type of match but can't host. Everytime I click on the create public (or private) game I get an error message saying " The connection to the game failed (12001)"
I have tried the usual stuff like veryfying the game cache and aven re-installed. Only to get the same result. I can join but not host.
Just wondering if anyone has this problem or might now of a resolve.
Cheers

[Rebellion Community]

Please send us a ticket about this as well: rebellion.co.uk/support

[VenuX]

the answer it not easy...

[Jollaholisti]

Today, we tried to make hosting game to Zombie Army 4: Dead War via PC and cloud gaming service GeForce NOW using Xbox Game Pass Ultimate membership. Hosting with GFN + Xbox GP worked well and was shown all users, but when trying to join/host with PC both methods gave error codes...12001 etc. Why? Game is been played from Epic Games Store if that make any sense...