My modem router (Netgear N600) is set up in my office and plugged into an ethernet port. There is then an ethernet port hub behind our TV for all rooms in the house. We had a power cut the other week and since then the ethernet port behind the tv is not working (hence not working anywhere) except in my office where everthing is normal. My tv guy has tested the CAT5 cable in the wall and says it is reading fine, we bought a new port hub (in case the power cut damaged it) but still have no internet from that point. Then I thought it might be the modem/router so purchased another Netgear and have tested it and still the same problem, do you have any ideas please?
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