Welcome to Justanswer.com, my name is ***** ***** I will do my best to assist you.
We need to carry out possibly up to three repairs. Lets start with the easiest one first and see if that helps.
Lets start with the reset shown in this short video. https://www.youtube.com/watch?v=OWaEX4jWtog
If that doesnt work, let me know so we can try further steps. If it does work, please remember to return here and click and submit a star rating to show I was able to help you.
Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.