https://www.pcgamer.com/ubisoft-resolves-ddos-attack-but-connectivity-issues-persist-for-some-assassins-creed-odyssey-players/

Following "a series of DDoS attacks" on the day of Assassin's Creed Odyssey's launch, Ubisoft is continuing to experience issues with its online services.

Yesterday, Ubisoft announced via its official forum it was "currently experiencing a series of DDoS attacks, which unfortunately are a common occurrence for almost all online service providers".