hik ds-7608ni-k2/8p

Hi new to this thread looking for a bit of help if possible I’ve had a Hikvision NVR DS-7608-NI-k2/8p for over a year now and been fine tried to adds plz auto track camera the other day with a Poe injector and ports 2/3/5/6/7/8 all stopped work only ports 1and 2 will work I can load any of my...