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Nighthawk AC1900 C7000 intermittently Drops WiFi, inaccessible via LAN port
Used with COX internet - firmware: (i'll updated this later but confirmed with Netgear that it is the latest update from Cox) Gateway broadcasts SSID but you can't connect to it. Inaccessible via...
What happens if you turn OFF ALL other wireless APs and just run with the modems wifi only?
Do any of your IoT devices broadcast there own wifi signal besides the modem and your other wifi APs?
How is your DHCP service IP address pool configured? 192.168.0.2 thru .254? If so, try this, Set the pool to 192.168.0.100 thru .200.
For those devices that you can set a Static IP address ON, set a static IP address ON these devcies to out side of the new pool size. Not inside. Items like APs, printers, cameras, NAS, controllers, etc, anything that you can configure it's networking settings and doesn't need any router mangement, set a static IP address on the device.
IF you have other WiFi APs running in concert with the modems wifi, this maybe an issue as well and it maybe causing some interferences. Separate channels should be used, so on the modems 2.4Ghz radio, set channel 11, AP#1, set for channel 6 thats farthest away from the modem. AP#2 set for channel 1 thats closest to the modem. I would not run the 3rd AP#3. Or you can run AP#3 can maybe disable the WiFi on the modem.
Distance in important as well between the modem and APs. 30 feet is a good start to begin with. Any thing close would be too much over lap in the signals.
Good comments - I tried a vesion of this last night and the internet was up for about 3 hours before it did it's thing and siezed up. As usual, fast speeds, no problem for streaming movies etc.
There are a total of 27 devices on the network and I reserved IPs for all of them and limited the DHCP range as suggested. Anything in the house that can have a static ip already does, but there isn't much. stereos, game consoles, TV - probably a total of 6 or 7 items. The APs do NOT offer that option which really bugs me (Actiontec WB3000N).
I had all 2.4 GHz radios off as well yesterday during this time.
One thing to note, is that when this problem started i had all radios on the access points turned off, they were just being used for ethernet to old non-wifi stereo equipment, so it was only the Netgear gateway and a EL cheapo EX2700 extender across the house. The problem really began when i replaced the EX2700 with a Linksys RE580 that i had laying around. I thought that maybe the RE580 was causing problems so i got rid of it but that didn't alleviate things. I only turned on the wifi on the access points after bypassing the Netgear gateway because the radio on my buffalo router is pretty dated. during this time we added a lot of smart stuff - google hubs, ecobee, switches etc. (a lot of changes at the same time - hard to isolate).
It has to be something with one of these $18 wifi switches from Amazon that clashes with the Netgear firmware, but seems to have no problem with the other equipment, who knows. This thing should be able to handle 30+ DHCP leases no problem. and yes - everything that can grab a 5GHz signal is on the 5G line (so it's not 30 leases on a single line).
My next thought was to only put the switches on the Netgear router (total of 8) and leave everything else on the Buffalo router and see what happens, maybe it's not a quantity thing but a lone offender. Then I can slowly start pulling more things on until it breaks again. Kind of a pain though.
I'm sure there are people here who have way more than 30 devices on their gateways.
FYI - general system is
C7000 (Modem / DHCP server) -> Actiontec Moca adapter (ECB6200K02) back fed back into home and picked up at Moca adapters (WCB3000N) -> switch in a few locations around the house for ehternet access (those are the access points). I've had this setup with no issues for a long time.
Now it is C7000 (Modem only) -> Buffalo (DHCP server) -> Actiontec -> Other Actiontec (with wifi turned on)..... and it's working with no issues.
Glad you found the configuration that works for you.
Please mark your thread as solved so others will know.
Enjoy. :smileywink:Well i'm still applying a workaround that i don't think is normal so I'm still troubleshooting.
Here's what the latest is:
turn on guest network on C7000 and place IOTS devices on there. Leave everything else on the downstream DHCP server.
Right now there are 8 of the cheap switches on the guest network and we'll see what happens. I'm going to migrate new things to it every couple of days and see what breaks it. When i get a definitive culprit I will post the results and mark this as closed.
In the meantime if this smells fishy to anyone or if there are any other suggestions please post up!