Troubleshooting On-Premises Data Gateway in Power Automate

Quick Answer

When a gateway service is confirmed running and the server has internet connectivity, yet the Power Platform admin center still reports it offline, the mismatch points to a registration or authentication problem between the gateway and the cloud service rather than a networking or service-availability issue. Reinstalling the gateway forces it to re-register and re-authenticate with the cloud, which resets whatever inconsistent state was causing the admin center to show it as offline despite the local service running fine. This is why simply restarting the service isn't enough here, since restarting affects the local process, not the cloud-side registration record that the admin center is actually reading from. It also rules out switching to a direct connection, since on-premises data sources like SQL Server require the gateway as their bridge to Dataverse and cannot connect directly, and it rules out a firewall fix, since the scenario already states outbound internet connectivity is working, which is what the gateway needs to reach the cloud. The general pattern to recognize is that when a local service is healthy but the cloud portal disagrees about its status, think registration and re-authentication first, and only look at the network or the service process itself when the symptoms actually point that way.