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Please do not repeat posts.
Your original post received 3 possible solutions.
You stated that it was not a USB cable/port issue. Have you contacted technical support? Have you tried a powered USB hub? USB issues like this can be common on bus-powered devices as some computers do not send sufficient power to run the device properly. A powered USB can solve some of these issues.
This thread is being locked. Please reply in the original thread. Thank you.