This forum is for Telerik Testing Framework support. Are you running a framework test or you are using our Visual Studio plugin? If you are using our VS Plugin and you are running your test from Quick Execution then yes the test settings are different than when you are executing the test from Test View in debug mode. However if you are running a framework test, Visual Studio uses the same settings for execution and debug mode and you shouldn't run into this problem.
To be able to help you further a local repro is needed. Please provide the means to reproduce the issue locally(either in your app or on a public site), so we can try to determine what is causing the problem when you are testing in execution mode. Alternatively you can record a Fiddler trace using FiddlerCap
and send it to us in a zip file. A Jing video
demonstrating the issue may also help me to better understand what is happening.
All the best,
the Telerik team