Cannot Login To Dashboard - Get 404

Hi,

I'm unable to login to the Dashboard plugin today. I am getting the following when I submit...

"{"code":"rest_no_route","message":"No route was found matching the URL and request method","data":{"status":404}}"

This appears at UR: https://premium.wpmudev.org/api/dashboard/v1/authenticate

Using the latest WP and Dashboard plugin.

Please advise.

Thank you,

Corey