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Any one know how to check if Ethernet magnetic modules, and what might the symptoms be if one is going bad or is bad !
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Have a 24 port Poe switch and the first 8 ports do not transmit or receive (no link) but willl power on Poe, out of that 8 2 ports are completely dead not even Poe and the rest works fine, I have check the board and found few 8 bit ic’s that were bad and a cap which I replaced that got the switch to work. Console doesn’t show any errors either. And the Poe power board is good. Btw it’s a unifi 24 port Poe switch
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