Xbox Preview Update Error. Won't connect Xbox one online.

I registered my xbox one to preview upcoming updates on 2/25 and received a message to visit forums.xbox.com to provide feedback and invited my friends to preview upcoming updates but I'm still receiving the "Group Not Found" error when I try to access the
forum page. When will this be resolved?

Since the recent public update was released last week maybe we won't receive the next preview update for a few weeks? Maybe that's what's causing the "Group Not Found" error?

support.xbox.com/.../xbox-update-preview-faq

What should I do if I want to stop participating in the program?

If you decide that you don't want to get Preview updates anymore you can opt out in the Xbox Preview Dashboard app. You won't be removed from the program right away; it won't happen until the current update is released to the general public. If you change
your mind, you can always re-register your console later using the Xbox Preview Dashboard app.

Here's how to remove your console from the Xbox Preview program:

Open the Xbox Preview Dashboard app.

Select Registration.

Under Manage flights, select Change.

Note If you have more than one console in the program, you can change their statuses by using Manage other consoles.

Under Manage programs, select Remove, and then select Submit. You'll be prompted to select a reason for leaving.

If you run into any issues, post in the private Xbox Early Access forums for help.

Note Your console won't be removed from the program until the current Preview update is released to the general public, so it won't happen right away. Until then, your console's status will show as Pending.

This code is an error connected to the preview update issues. You should post this in the preview forum

Hi everyone,

The development team implemented a fix on the backend as this was a server side error. Since it seems that some Xbox Insiders are still getting the error, please post in the Errors
while using Insider Hub or Reporting a problem thread so the proper teams are aware that you're still experiencing the issue.

In the future, please post any Xbox Insider issues or related to Preview updates, in the Xbox One Update Preview forums here: Xbox One Preview

I've the latest preview update installed on my xbox one but if I try to access the preview forums I get also the group not found error page.