I got this Netgear NAS which does not seem to be working well with GbE. When you plug in the cable it usually tries to connect using GbE (1 to 5 times), than either fails completelly or switches to FastEthernet. Sometimes it works on GbE, sometimes it does not connect at all.
I've started with grounding the RJ-45 metal casing on the PCB as there was some 5 V induced at 50 Hz on the twisted pairs. That came down to 0,5-1 V but still no change in behaviour.
So what may be wrong, the magnetics module or Marvell 88E1116R ethernet controller?
I've started with grounding the RJ-45 metal casing on the PCB as there was some 5 V induced at 50 Hz on the twisted pairs. That came down to 0,5-1 V but still no change in behaviour.
So what may be wrong, the magnetics module or Marvell 88E1116R ethernet controller?
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