Forza Horizon 4 connection error

I reinstalled Forza Horizon 4 without any problems.Only Forza Horizon 5 will have an error.

Hi there catchirps,

Thanks for reaching out here in Xbox Forums. We understand there is an issue with connecting to Forza Horizon 4 multiplayer. If you are able to play other multiplayer games, I recommend trying to

power cycle the Xbox and network hardware.

If the issue persists, I recommend trying the following article:
Xbox One Multiplayer Connection Error Solution and try checking your internet configuration to ensure the ports are open for the Forza Horizon 4 servers. Check out this article:

Forza Horizon 4 Community Support - Ports.

Try this out and let us know the results.

Thanks for trying Lester, but none of that helped. Still unable to connect to multiplayer in Forza Horizon 3 or Forza Horizon 4 on PC.

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?

Hi there Kuronato,

Thanks for reaching out here in Xbox Forums. I understand there is an issue with connecting to Forza Horizon 4 servers. To help clarify the issue:

• What device are you using to play Forza Horizon 4?
• What is the exact error message you are receiving?
• Have you tried the
  Forza Motorsport Forums for in-game assistance from the community?

Let us know so we may further assist.