I have set up Report Server in Integrated mode, using the Service Account as Network Service. On the report server I can log onto the web service using my credentials just fine. However when I try and access anything with reports on the site collection it gives me a 401 unauthorised error. Any ideas? It also gives me the same error if the service account is my credentials.
need to debug it. Open developer tool and go to Network Tab. click on status tab and press the red record button. and then refresh the page. the status table will have different rows loaded. check for which row you are getting 401 error. is it some webpart, or some particular content.