rsExecutionNotFound when directly accessing an SSRS report I have an SSRS report that can I access from the Web Portal but once I try to access it directly through the URL, I get the following error: Execution 'xxx' cannot be found (rsExecutionNotFound).

I looked at the logs on the Report Server and the error there says  userName: mydomain\myusername not found in the database.

But, of course, it is in the database - I can access the report from the Web Portal.

Any ideas?

UPDATE The same link now works, two days later.
What I have seen in a case like you ask about is you hit a report, and copy the url out and then try to hit it later. Reports have session state, especially if you change paramaters,etc. The url will look like a report url with some funky querystring data added to the end. You can't share that because SSRS can't take your "session state" and then find it later.