sorted not sure how i did it took me 2 hrs to sort with a laptop lol
You lost the IP or interface so just reset it ..
There is a little pin hole in the back by the ethernet port. Put a toothpick in there and hold for 5 seconds and release. Wait about 3-4 minutes to reboot, after reboot power down the power supply and reboot one more time. After it comes back up you will see it on the default IP which is 192.168.1.99
Some people needed to do this process twice but it always worked for me on the first shot.