Comcast.net email stuck in connect.xfinity.com loop

My Comcast.net email address is listed on my account, but I cannot access webmail.

When I go to connect.xfinity.com/appsuite, it loops to the Xfinity hub/support page instead of opening the mailbox. The email status page says “You don’t have Xfinity Services.”

I also tried setting the mailbox up in Thunderbird using the Comcast IMAP/SMTP settings, but login fails there too.

This looks similar to other forum posts where Xfinity had to check or repair the mailbox on the backend. Please check whether this mailbox is active, inactive, closed/deleted, attached to another Xfinity ID, or needs backend repair/reactivation.