F1 25 - Cannot connect to multiplayer sessions - putting me in a solo lobby.

Im having the same exact issue, i think its a steam issue because nobody else i know is experiencing this. 

please update if anyone can find a fix!

Same issue 

SOlVED : i had a software app that was stock installed with the motgerboard called "CFosSpeed" . Tbis was causing connection issus with the gane lobbies. 

1. Control panel
2. Network and sharing centre
3. Change apapter settings
4. Right click your connection
5. Properties
6. Under "this connection uses the following items:"
7. Deselect and uninstalled cFosSpeed.

ALl sorted hope this helps someone else 

Sadly do not have this cFosSpeed service on my PC, how did you determine this was an issue?

It was a hunch. If i was you id follow the same steps. And deselect (but dont unistall) any network plugin systematicaly until you find the culprit. 

I only uninstalled CFosSpeed because it was an iritating feature on startup.

The issue with the game is that it is very picky with network and sharing settings

Has anyone found a fix to this, I have same issue, going PC to PS5, worked before patch but has now developed this  issue, can't see any networking issues that would cause this on my end, conn speed in 900Gb range and stable, no network sharing enabled