Critical severitygateway
Power BI Refresh Error:
ServiceBusCommunicationException
What does this error mean?
The on-premises data gateway cannot connect to Azure Service Bus, which is the communication channel between Power BI Service and the gateway. Without this connection, the gateway is effectively offline.
Common causes
- 1Outbound HTTPS (port 443) or AMQP (port 5671/5672) traffic from the gateway machine is blocked by a firewall
- 2A proxy server is intercepting and terminating the gateway's outbound TLS connections
- 3The gateway machine has no internet access or DNS resolution is failing for Azure endpoints
- 4Antivirus or endpoint security software is blocking the gateway process's network calls
- 5The gateway Windows service account was modified and lost necessary network permissions
How to fix it
- 1On the gateway machine, open the On-premises data gateway app and check the connection status — it should show 'The gateway is online'.
- 2Verify outbound access to *.servicebus.windows.net on port 443 and 5671/5672.
- 3If behind a proxy, configure proxy settings in the gateway configuration file (Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.dll.config).
- 4Temporarily disable antivirus/firewall on the gateway machine to test if it is causing the block.
- 5Run the gateway connectivity test tool from the gateway app's diagnostics section.
- 6Check the Windows Event Log on the gateway machine for specific Service Bus error codes.