popup window issue with Firefox and Chrome

Hi, I just started using telerik test studio version 2015.1.319 and whenever I try a test with a popup window, I can record in any browser but the playback only works with IE. Both FF and Chrome through an error(chrome actually just hangs). I tried the fix from (http://docs.telerik.com/teststudio/testing-framework/frequently-asked-questions) which suggests the modification

"Manager.SetNewBrowserTracking(true);

Manager.WaitForNewBrowserConnect("detail", true, 30000);

Manager.SetNewBrowserTracking(false);"

but that didn't work for either chrome or FF

here is the exception details

"ArtOfTest.Common.Design.Exceptions.ExecutionException: Exception thrown executing coded step: '[fixFFpopup_CodedStep] : Connect to pop-up window : 'http://10.100.1.108:600/BackEnd/FreeArea', ConnectToPopup=true'. ---> System.OperationCanceledException: Exception occurred waiting for the new browser to connect. ---> System.TimeoutException: Wait for condition has timed out
   at ArtOfTest.Common.WaitSync.CheckResult(WaitSync wait, String extraExceptionInfo, Object target)
   at ArtOfTest.Common.WaitSync.For[T](Predicate`1 predicate, T target, Boolean invertCondition, Int32 timeout, WaitResultType errorResultType)
   at ArtOfTest.Common.WaitSync.For[T](Predicate`1 predicate, T target, Boolean invertCondition, Int32 timeout)
   at ArtOfTest.WebAii.Core.Manager.WaitForNewBrowserConnect(String url, Boolean isPartial, Int32 timeout)
   --- End of inner exception stack trace ---
   at ArtOfTest.WebAii.Core.Manager.WaitForNewBrowserConnect(String url, Boolean isPartial, Int32 timeout)
   at TestProject4.fixFFpopup.fixFFpopup_CodedStep() in c:\Users\abdallah\Documents\Test Studio Projects\TestProject4\fixFFpopup.tstest.cs:line 54
   --- End of inner exception stack trace ---
   at ArtOfTest.WebAii.Design.Execution.ExecutionEngine.ExecuteCodedStep(AutomationStep step, Object codeBehindInstance, StepsTracer tracer, AutomationStepResult result)"

Hope to hear from you soon;

Abdallah