Foza unable to connect online.

you know it is forza not foza

Are you having any connection issues with other games as well, or is it specifically on Forza Horizon 4 only?

If you try a Horizon Solo session, and then try to switch online, does it give you the same error message?

Hey I'm Tuyiz

I see your having issues with Forza? If you still are, the best advice would be is to reset your Xbox and your wifi. Another option you could do is by clicking "select" on the game, go to manage game, then clear reserved space. *Note it won't delete any
or erase any progress in the game. If this doesn't work contact the developers of the game to help with the issue or to provide information for you. I hope my infromation and help was useful have a great day.

I'm having the same issue and its not happening with any game it is just with Forza. Also if you try to go to solo and try to switch back it does the same thing but I think it is a bigger problem because if you go to your network status in the Xbox app
on your computer it will say something to the effect of server connectivity block or the NAT type will say Teredo Unable to qualify. My other friends have not had this issue but would be very helpful to have the answer to this issue an I have tried all the
usually thing that Microsoft has put to help fix it but didn't help fix the issue.

Hi,

Sorry you're having trouble with access online in Foza. You can still access your settings for online via Xbox.com. Please login with the Microsoft/Xbox Account that you plan on using with Foza and ensure that all these settings are correct for online play.
If you're under the age of 18 on the Microsoft Account you may need to have your parents login with their Microsoft Account if they had yours linked. You may do that here: Privacy settings:
account.xbox.com/Settings Online Settings:
account.xbox.com/Settings

Let us know if that helps