hello ,we just upgarde out internet last week and since than out cameras not working we have poe switch and all cmarea connected from switches there is one wire came from switch which is inside in the nvr and only one camera woring i m sure thtas the wire came in from switch nody touch the switch.today i s missed around and the blue wire i try in modam and there was an other wire i try in nvr so i see an other camera than switch the cable to other port so i see one more camera but still not showing all the cmaera on same time