Forza Horizon 5 fails to join sessions, Server Id is all 0s

twdk01 · Mar 28, 2022

So... there's an abundant number of threads on Forza Horizon 5 and failing to join sessions.

This is my setup:

- Computer wired straight to the router and inside a DMZ.

- Tried with the computer's firewall off.

- Tried disabling pretty much every service other than those that would let me run the game.

Region pretty much flips back and forth between a valid region and Failed without any change in behaviour.

Everything online works other than actually being able to join sessions (I can retrieve from other players, participate in car auctions, play rivals and Super 7 challenges, just no live racing).

Xbox networking seems alright:

Teredo is alright, too:

I already contacted Forza support and they sent me this way.

Anyway... TIA!

:)

twdk01

Yup... the region auto-sets based off the OS config (set to Argentina), so it's always taking either servers from SouthCentralAmer or AmerEast.

Ricardo Lechuga

That's the region set? Or the region where you live? If it's the region where you live let me know what region have you set, the same region?

twdk01

South America/Argentina. Already contacted FH support, they said it's an issue with Xbox matchmaking and that I should head this way.

twdk01

Yup. Disabled all protection running on the host and put it in a DMZ. I also tried connecting the host directly to both of my ISPs.

Ricardo Lechuga

Hi Twdk01! My name is Ricardo an independent advisor ready to help you with this situation!

Please check the information on this link

https://www.reddit.com/r/ForzaHorizon/comments/...

In the comments are some options also

Forza Horizon 5 fails to join sessions, Server Id is all 0s