In order to help with your issue, we need more information about your test scenario. Please provide us with a copy of your test and access to your application. If it is not possible to grant us access to your application, please take a Fiddler trace and attach it to a support ticket in a zip file. If you are unfamiliar with how to do that please refer to this short video
. You can download the Fiddler application from here
. A Jing video
demonstrating the issue may also help us to better understand what is happening. If you regard that information as sensitive, you can attach it to a support ticket which is confidential, unlike this forum thread. Thanks for providing the information we need to best advise you.
All the best,
the Telerik team