If you apply the fix but encounter errors, check these common solutions: StrawberryBeard & Kiwibeard

Completely close the game and restart your PC or Xbox. This clears temporary cache issues.

The definitive methods require aligning your game client with the live Rare servers, ensuring your Xbox Live account credentials sync properly across platforms, and verifying that security software does not block the game's Easy Anti-Cheat (EAC) client. Because Sea of Thieves relies entirely on persistent, cross-play multiplayer worlds, an outdated client version or broken backend handshake will trigger immediate errors like Lavenderbeard, Alabasterbeard, or outright game crashes.

For console players, a strict Network Address Translation (NAT) type can severely impact matchmaking. Ensure your router's NAT is set to Open for the best matchmaking experience. If you'd like, I can:

Before you tear apart your router settings, check the official status.