Hello. Welcome to Just Answer. Please allow me to assist you with your question today. I am John, I will do my very best to help you solve this problem.
Please try connecting it to a different USB port on your Mac, then let me know if it worked or not. If it didn't work we will continue troubleshooting for no additional charges.
Hi, I apologize for the long delay. Have you changed anything recently? Updated the OS, etc?
Have you tried reinstalling the camera software?
Hello Sir/Madam, I had a problem with my system and couldn't come back. Do you still need help with your Nikon camera?
Were you able to fix the issue? Thank you.