Can't play online. Steam/PC version of Forza Horizon 4

I bought the game like ½ a year ago with no problems playing online. now i picked it up again i just can’t play online. i have been trying different things for about 3 weeks now without a result, i posted on reddit aswell without anything i could use. I have been looking into xbox-network mostly, these steps Xbox Support, but this didn’t help. i am currently downloading it on another computer to se if it is something to do with this pc or router( i am no computer expert :D). i am soooo out of ideas at this point. Any tips would be very appreciated

BTW, if i posted in the wrong section on the forum i am sorry

Please go to Forza Support and review the Known Issues list and other articles in case there’s something that might address it. Use the link at the bottom of any article to Submit a Ticket for the team to investigate your details.
https://support.forzamotorsport.net/hc/en-us/categories/360000558393-Forza-Horizon-4