Business Central environment unreachable – ERR_HTTP2_PROTOCOL_ERROR

Resolved
Resolved

Microsoft has resolved the connectivity issue affecting Business Central environments. All users should now be able to log in and access their environments as expected.

If you continue to experience issues, please contact support for further assistance.

Identified

Microsoft has confirmed an ongoing outage affecting Business Central environments. Users may experience connection issues, such as the "ERR_HTTP2_PROTOCOL_ERROR" message when attempting to access their environment.

Microsoft’s Product Group has declared this a known outage and is treating it as a top priority.

Possible Workaround:

  • Restart the device and try again

  • Wait a few minutes and then run ipconfig /flushdns on your device

  • Alternatively, try accessing Business Central using an In-Private (Incognito) browser window

We will continue to monitor the situation and share updates as soon as they become available.

Investigating

We are currently receiving reports from multiple customers that certain Business Central environments are not accessible. Users encounter an "ERR_HTTP2_PROTOCOL_ERROR" when attempting to open their environment via the standard Business Central URL.

This appears to be related to a connectivity issue between client browsers and Microsoft's Business Central platform. We have reported the issue to Microsoft and are awaiting further updates.

We will continue to monitor the situation closely and provide updates as soon as we receive new information.

Began at:

Affected components
  • Environments
    • Microsoft Cloud