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Test Studio Fails to Start Microsoft Edge Browser


Telerik Test Studio cannot start Microsoft Edge browser without browser extension. While Test Studio tests work fine with Chrome.

System.TimeoutException: This request operation sent to net.pipe://localhost/Telerik/TestingFramework.Hosts.Manager did not receive a reply within the configured timeout (00:01:00). The time allotted to this operation may have been a portion of a longer timeout. This may be because the service is still processing the operation or because the service was unable to send a reply message. Please consider increasing the operation timeout (by casting the channel/proxy to IContextChannel and setting the OperationTimeout property) and ensure that the service is able to connect to the client.


A possible reason for the issue can be a Windows Policy which disables Developer Tools in Edge browser. Try the following steps to resolve the error:

  1. Open the registry editor.
  2. Check the registry node "HKLM\SOFTWARE\Policies\Microsoft\Edge" if it has the value of "DeveloperToolsAvailability" set to REG_DWORD 2.
  3. Set the value to REG_DWORD 0.
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