Have not been able to invite/be invited to any groups. Matchmaking of anything but duels result in endless queues.

When getting into main menu I get the warning "Faction War current state is unavailable. War assets cannot be deployed right now. Please try again later", that is the only indicator of something being wrong. From then on I cannot join any groups or invite, or do any matchmaking (other than duels).

I have open NAT, tried everything under the sun to try get around the error, including port fowarding, constant restarting, restarting then going into a practice, changing my name, unadding then readding friends then adding them, reinstalling uplay. No matter what, I cannot invite people or get invited to any groups.

Any help would be appreciated, as I played this game to have fun with mates and as of now I cannot.