Unable to load usercontrol

Mar 14, 2008 at 11:41 AM
I have a site page with some smartparts.
One of the smartparts has no connection to any other smartpart.
Another smartpart has a usercontrol with a provider interface and is connected to a smartpart with a usercontrol with a consumer interface.
When I restart the IIS server and load the site page, I get an error message "Unable to load xxx.ascx", "Request failed".
When I select edit page and leave edit mode without doing anything, the message has disappeared.
When I now close the browser and load the page again, the message is NOT shown.
However, when I restart IIS and open the browser and load the page, the message is shown again.

The strange thing now is when I disconnect the provider-consumer smartparts, I don't get the problem described above.

Does anyone know what is happening here and more important how I can fix this problem.