Hi @UnknownAv8tr,
Sorry that this issue is still affecting you. We have pinned a banner message at the top of every forum page notifying players of our awareness of this issue, and that it is being investigated: Server Authentication Issues 2025-11-12 - Official Microsoft Flight Simulator / News & Announcements - Microsoft Flight Simulator Forums
We’ll ensure to update this post, alongside provide information within this forum thread, when we are able to.
Thanks
The MSFS Team