I need to keep changing USB ports

Question

Lately I have noticed that USB attached peripherals simply stop working until I move them to a different port. Doesn't matter if it is a different port on a hub, or different port on the Mac Pro. In addition, doesn't seem to be device dependent.

Answer 1

Alternatives for Help Resetting Security Questions and/or Rescue Mail
     1. If you have a valid rescue email address, then use this procedure:
         Rescue email address and how to reset Apple ID security questions.
     2. Fill out and submit this form. Select the topic, Account Security. You must
         have a Rescue Email to use this option.
     3. This is the only option if you do not already have a valid Rescue Email.
         These are telephone numbers for contacting Apple Support in your country.
         Apple ID- Contacting Apple for help with Apple ID account security. Select
         the appropriate country and call. Ask to speak to the Account Security Team.
     4. Account security issues almost always require you to speak directly to an
         Apple representative to securely establish your identity as the account holder.
         You can set it up so that Apple calls you, either immediately or at a time
         convenient to you.
            1. Go to www.apple.com/support.
            2. Choose Contact Support and click Contact Us.
            3. Choose Other Apple ID Topics and choose the appropriate topic for
                your issue.
            4. Follow the onscreen instructions.
         Note: If you have already forgotten your security questions, then you cannot
         set up a rescue email address in order to reset them. You must set up
         the rescue email address beforehand.
Your Apple ID: Manage My Apple ID.
                        Apple ID- All about Apple ID security questions.