Microsoft Azure have reported the following at 16:35 UTC:
"Starting at approximately 16:00 UTC, we began experiencing DNS issues resulting in availability degradation of some services. Customers may experience issues accessing the Azure Portal. We have taken action that is expected to address the portal access issues here shortly. We are actively investigating the underlying issue and additional mitigation actions. More information will be provided within 60 minutes or sooner." -
https://azur...