Ethernet ports show activity, but are not allowing connection to the internet

[Buczar]

Today when I connected to my docking station, I discovered I could not connect to the internet.  First assumption was a Comcast outage which is often solved by the standard turning off of the modem and router, waiting a minute and turning back on.

I discovered that while I could connect to the router's WiFi, I could connect to the internet.  I logged into the router via wifi, and indeed confirmed that the only connection method were all by wifi.  All of my extenders are connected by ethernet (so can't connect to them via WiFi and get to internet).  Laptop at my desk is connected by ethernet (well, MoCA to Ethernet), my gaming console is ethernet.  Overall, about 17-ethernet connections throughout my network.  None of them are working.

Everything I Google around 'router WiFi working but Ethernet not' tries to trouble shoot the computer connecting.  In my case, it seems everything 'can' connect to the router, but it can no longer reach the internet.  I'm not sure if something is up with my LAN settings, DHCP, etc.  Nothing has changed that I know of since yesterday.

No idea where to go from here to triage.  I'm using a Netgear R9000 x10.

[plemans]

What firmware is on the r9000?

what modem/gateway is it connected to? 

Are any devices connected directly to the router or are they running through switches/moca adapters?

[plemans]

also, whats it showing on the wan port statistics. 

https://kb.netgear.com/24222/How-do-I-display-Internet-port-statistics-on-my-Nighthawk-router

[Buczar]

Thank you for the response!

What firmware is on the r9000?

v1.0.5.40

what modem/gateway is it connected to? 

Arris Surfboard with phone. 

Are any devices connected directly to the router or are they running through switches/moca adapters?

All of the above actually.  2 direct runs, one to a moca, one to a switch.

also, whats it showing on the wan port statistics. 

Here is the full table:

Port	Status	TxPkts	RxPkts	Collisions	Tx B/s	Rx B/s	Up Time
WAN	1000M/Full	7905307	22288261	0	30836	47924	01:00:53:17
SFP+	Link Down	0	0	0	0	0	00:00:00
LAN 1	1000M/Full	2201616	685117	0	5802	1423	01:00:14:52
LAN 2	1000M/Full	01:00:14:52
LAN 3	Link Down	00:00:00
LAN 4	1000M/Full	01:00:14:52
LAN 5	Link Down	00:00:00
LAN 6	100M/Full	01:00:14:52
2.4G WLAN b/g/n	800M	5934127	10571299	0	15000	7657	01:00:14:35
5G WLAN a/n/ac	1733M	22212570	8989667	0	2377	41444	01:00:14:31
WLAN ad	Link down	0	0	0	0	0	00:00:00

[plemans]

Thats interesting that they're showing connected but no data packets transferring. 

Did you try factory resetting and reinstalling? 
You could also try reinstalling the firmware then doing the factory reset (or start with that first). 

IF something is corrupt in firmware, the firmware reinstall covers that. IF something is corrupt in the settings, the reset should cover that. 

[Buczar]

Yep, it's a new one by me for sure (ok, I'm not a guru, so there's lots of new things by me 🙂 - but in the scheme of things, seeing activity but not having connectivity seemed pretty odd).

And so . . . yesterday morning when I went to get to doing a full reset . . . it was all working.

Which is about as perplexing since these things usually don't fix themselves.  I'm of course going to monitor it the next few days and likely going to do the full system reset just to be sure.  My best guess is that there was some type of conflict in the assigning of IP addresses.  Something in the DHCP setup?  Maybe caused by a rapid on/off of the router (I have been having some power fluctuation problems).

I want to assume 'user error' or the like as well.  Maybe time will tell.

Thanks for the assist.

[Buczar]

I'm relatively confident I sorted this out:  my electronics closet was reconfigured when we put solar in.  Equipment was added (a converter and other stuff) and the router was moved 'higher' in the closet.  Odds are . . . the router was overheating.  Tested this a bit by turning the router off when it stopped working to let it cool.  Sure enough, if set for 20-minutes, all worked normal when rebooted.

[plemans]

Ahhh heat, the old enemy of electronics. A good way to fry a device. i'm impressed the wifi worked if it was hot enough the ethernet connections weren't working

[FURRYe38]

Try adding a laptop cooler under the router for 24/7 cooling. 

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@Buczar wrote:

I'm relatively confident I sorted this out:  my electronics closet was reconfigured when we put solar in.  Equipment was added (a converter and other stuff) and the router was moved 'higher' in the closet.  Odds are . . . the router was overheating.  Tested this a bit by turning the router off when it stopped working to let it cool.  Sure enough, if set for 20-minutes, all worked normal when rebooted.

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