Cannot connect to multiplayer services

Two days ago everything was fine, and I was able to play online. But yesterday “Co-Op Campaigns” and “Multiplayer” buttons became disabled, and in top right corner there is “Reconnect to multiplayer services” button. When i click it, it just endlessly says “Signing into Multiplayer services”. However when I use VPN everything gets back to normal. I didn’t change any network settings or anything.

I’ve tried:

  • Restarting router
  • Reinstalling the game
  • Restoring firewall settings to default