Intermittent Async_Exception Updated errors in Silverlight 4 application

Question

One of our users yesterday received the following unexpected error while using our Silverlight application:

[Async_ExceptionOccurred] Arguments: Debugging resource strings is not available. Often, the key and arguments provide enough information to diagnose the problem.

Any idea how I start researching this? The problem is intermittent and so far has occurred twice. We do not use the clientaccesspolicy.xml file, because the services and the web application are on the same server. I looked at the IIS logs while the user was receiving the error, but I see no obvious problems.

Where do I go next? I can hardly ask the user to install Fiddler, since the problem is very rare.

Answer 1

Including a trace listener in a service will give you a very detailed explanation. In addition, if customer hours are significantly different from service hours, you may receive an exception. You can fix this by adding MaxClockSkew to the service.