Open reportserver webservice URL with https leads to an ERR_HTTP2_PROTOCOL_ERROR

Question

We have installed on a Windows Server 2022 the latest version of PowerBI Reporting Server. We have bound a wild card certificate to the PBRS webservice and PBRS portal site. We have also added the FQDN cname to the PBRS reportingserver config file.

We have used to deploy any reports by URL's like https://reports.contoso.com/ReportServer/Pages/ReportViewer.aspx?/Invoice/InvoiceReport.

Opening with Microsoft Edge we get the error:

Hmmm… can't reach this page

It looks like the webpage at https://reports.contoso.com/ReportServer/Pages/ReportViewer.aspx?/Invoice/InvoiceReport might be having issues or it may have moved permanently to a new web address.

ERR_HTTP2_PROTOCOL_ERROR

On the other hand when opening the URL https://reports.contoso.com/Reports/Invoice/InvoiceReport

we will be asked to login with the user credentials. Afterwards calling the webservice runs fine.

Does anybody had already the same error and how we can avoid it?

rhousham · Answer

dulix&nbsp;Did you find a resolution to this?

dulix · Answer

Unfortunately no. I have tried according the article https://greigmitchell.co.uk/2016/08/enable-ssl-on-sql-server-reporting-services-with-a-wildcard-certificate/ but without success 😞

rhousham · Answer

dulix&nbsp;Thanks - currently trying to throw the kitchen sink at this.Our systems guys reckon it's an issue with windows server 2022 - but your the only other person who's found the issue.... (or so it seems)&nbsp;Sucks to be us! 🙂

rodsawhite · Answer

rhousham&nbsp;I am experiencing the exact same issue.Its almost as if it is registering the certificate at the directory level instead of the site level. tried requesting new certificates and still the same issue:navigation to /ReportServer/ fails with&nbsp;ERR_HTTP2_PROTOCOL_ERRORnavigation to /Reports succeed and states cert is validnavigate BACK to /ReportServer/ then succeeds and states cert is valid.Interestingly If you try these site in Internet Explorer (older servers) and not chromium-based browsers like Edge and Chrome you can browse to /ReportServer/ correctly.It seems to be something with the new browsers specifically.

rodsawhite · Answer

Hi dulix&nbsp;,After some time spent with Microsoft support we may have a workaround:Disable HTTP2 on the server:Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HTTP\ParametersEnableHttp2Cleartext DWORD = 0EnableHttp2Tls DWORD = 0Restart the server after adding these in and report back.

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Open reportserver webservice URL with https leads to an ERR_HTTP2_PROTOCOL_ERROR

Hmmm… can't reach this page

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