Sudden loss of Ethernet ports C7000-100NAS

> [...] I completely understand it could just be a failed board related
> to the ethernet ports etc. however, it seems very odd to me that this is
> only affecting the Ethernet portion of the unit.  I could be completely
> wrong but it seems other functionality would be affected as well.
> [...]

   Perhaps you "completely understand" less than you think.  I know
approximately nothing about what's in these things, but I'd guess that
there's an Ethernet-switch-on-a-chip which deals with the LAN Ethernet
ports.  Such a device could fail without affecting the rest of the
modem+router.

> [...] Netgear do you have service parts avialable for the internals?
> [...]

   So far as I've seen, Netgear doesn't sell even AC adapters or
antennas, let alone internal parts (which, I'd guess, you're
ill-equipped to diagnose or replace, in any case).

   So far as I've seen, Netgear doesn't sell even AC adapters or
antennas, let alone internal parts (which, I'd guess, you're
ill-equipped to replace, in any case).

> [...] I shouldn't have to buy a new modem/router every 2 years when I
> purchase from the high end of your product line, IMO.

   Not _my_ product line, but a two-year life would disappoint me, too.
On the other hand, that is why warranties and insurance exist.