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Aspirant

R6400 v2 Loss of WAN ethernet connectivity

I have been using an AC1750 R6400v2 WiFi router for past 18 months.  Router has been working great for this entire period.  This morning woke up to find router not communicating with modem. No Ethernet light on Modem and no Internet light on Router.  Tried resetting the router and modem - no change. Tested Internet connection from Modem to computer and found Computer was connecting to Internet through modem.  Plugged ethernet cable from Modem back to WiFi router and found the router and modem are still not communicating.  Downloaded and installed latest firmware as of 4-23-19 no changes in connnectivity.  Tried to hard reset router still no changes in WAN connectivity.  Tested WAN LAN connections by connecting Ethernet cable from WAN to each LAN connection did not give me any connection lights.  WiFi connectivity to router is working Router just no longer connects to modem/Internet.  Any other suggestion to repair or reset WAN connection?

Message 1 of 4
Guru

Re: R6400 v2 Loss of WAN ethernet connectivity

> [...] Tried to hard reset router [...]

 

   "Tried"?  Did the settings get reset?

 

> [...] Tested WAN LAN connections by connecting Ethernet cable from WAN
> to each LAN connection did not give me any connection lights. [...]

 

   But connecting LAN 1 to LAN 2 (say) gives you two white port-status
LEDs?  That would verify the cable.

 

> [...] Any other suggestion to repair or reset WAN connection?

 

   To me it sounds as if your WAN/Internet port is fried.  If a proper
settings reset didn't help, then, unless you can find and repair some
physical damage, I'd guess that it's not a router now.

 

   A Web search for terms like, say:

 

      Netgear 30-30-30 reset


should find one more last-ditch thing to try, but I wouldn't expect
much.

 

> [...] WiFi connectivity to router is working Router just no longer
> connects to modem/Internet.

 

   You might still be able to use it as a wireless access point (using
only the LAN Ethernet ports), but actual router functions tend to rely
on the WAN/Internet port.

Message 2 of 4
Aspirant

Re: R6400 v2 Loss of WAN ethernet connectivity

Yes settings were reset with the hard reset.

 

WAN to any LAN no lights.  LAN to LAN not lights.  I know cable is good, tried second known good cable same indications no lights.  Tested cables in older router tested good and light up between connections both LAN to LAN and WAN to LAN.

 

Thinking the WAN/Internet or WAN/Internet and LAN ports are fried.  Interesting because there was not electrical events/ surges or storms detected here during the period of failure.  Just went from normal operation to a failed state.

 

Thanks Antinode for your reply.  

 

Message 3 of 4
Guru

Re: R6400 v2 Loss of WAN ethernet connectivity

> [...] LAN to LAN not lights. [...]

 

   Ah.  With _no_ working Ethernet ports, any remaining utility for the
thing escapes me.

 

   As a last-ditch desperation test, you could try a cable from any hole
on your "older router" to each port on the R6400v2, but it sounds as if
the whole Ethernet interface block is gone.

 

> [...] Just went from normal operation to a failed state.

 

   Everything fails eventually.  Conceivably, some trivial part (which
would actually be replacable) has died, but I've never seen a diagram
for one of these things, so I wouldn't bet a nickel on that.  Of course,
if the warranty's gone, and you have the right screwdriver(s), a little
exploration is possible.  (Probably not productive, but possible.)

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