Incorrect Chrome browser results as it shows 'your profile could not be opened correctly'.Sometimes the test runs after displaying this message. Few times, it times out and shows 'test completed but no successful results'
I assume this is for a private instance. What does your wptdriver.ini look like? It should have a command-line option specifying a profile directory (like %PROFILE% or something like that). The profile directory gets created and emptied in the user's appdata directory so unless there is a bizarre permissions issue I can't imagine why it won't work.