Power BI Report server - Issue with deploying power bi report

Hi all,

I got the information from escalation engineer, please follow below steps to troubleshoot the issue:

In the RSPowerBI log-

2017-05-23 11:25:32.1561|FATAL|1|Could not start PBIXSystem.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Net.HttpListenerException: Access is denied

   at System.Net.HttpListener.AddAllPrefixes()

   at System.Net.HttpListener.Start()

   at Microsoft.Owin.Host.HttpListener.OwinHttpListener.Start(HttpListener listener, Func`2 appFunc, IList`1 addresses, IDictionary`2 capabilities, Func`2 loggerFactory)

   at Microsoft.Owin.Host.HttpListener.OwinServerFactory.Create(Func`2 app, IDictionary`2 properties)

   --- End of inner exception stack trace ---

This seems to point to a URL registration issue. This could be caused by a couple scenarios:

1. Permissions
1. The PBI service account does not have permissions to write new HTTP reservations.

1. We can test this by changing the PowerBI sever account to be an admin account via the configuration manager and restarting the service

1. Conflicting reservation
1. Does the user have another instance of SSRS installed on this server? If so do the URLs configured conflict at all?

The next thing I would try would be to test a normal SSRS report to see if all reports are unable to upload or only PBIX reports. I have attached a simple report with no datasource, please see if they are able to upload the report. Beyond Power BI report server log we could gather a Procmon of them attempting to upload to see where the denial is occurring.

Best Regards,
Qiuyun Yu