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R7800 keeps dropping its Internet connection
My router (R7800 Nighthawk) is updated to firmware 1.0.2.92. I have a TP-Link EAP 110 Outdoor access Point connected to it, and a KuWfi 300Mbs bridge connected to a 8 port gigabit switch. I also have a TP-Link WPA 7510 powerline extender kit connected. I have a main network, let's call its SSID "A" with the router handing out addresses in the 10.0.o.xx net.. The 10.0.0.1 address for the router was set by the Netgear Genie when configuring the router, because of a conflict with the ISP Gateway address of 192.168.1.1. The TP-Link Access Point has its own SSID, let's call it "B", and the KuWfi bridge has its own SSID, let's call it "C". I have excellent WiFi wireless connectivity to each "network" (A, B & C) and normally have an internet connection via each of them. But then one of them will randomly loose the internet connection and even though they are on the same router, I will have to log into one of the other SSIDs to get an internet connection. Then randomly - anywhere from 10 minutes to several hours - it will lose its internet connection and I will have to logon into another one to get Internet ... and so on. This seems to happen randomly for no apparent reason. The DNS's are all set to the Google servers (8.8.8.8, 8.8.4.4) and clearly the problem is not with the ISP, because if it was, I wouldn't be able to connect to the internet at all, as they are all in the same router. I am located in Costa Rica and the R7800 router was purchased through Amazon US. My internet service provider says their DNS servers are also set to the Google servers. The router appears to work flawlessly in every other respect, - just the frequent incidences of the network I m on dropping its internet connection. Can anyone help to identify what si going on and how to solve the problem? I have tried Netgear support but they have not been of any help. Thanks
Hi all - I just wanted to report back after monitoring the system for the last 24 hours +.
The problem has been solved - clearly it was an issue with having 2 DHCP servers running, and since I reconfigured the bridge units without DHCP active and with Static IP addresses, everything now seems to be working fine.
Thank you all so much for your help in troubleshooting this, and I am very happy that the R7800 now seems to be doing the job I hoped it would. Cheers
22 Replies
Does the Internet LED on the R7800 turn AMBER when this happens?
Your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. This would be a double NAT condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
Couple of options,
1. Configure the modem for transparent bridge or modem only mode. Then use the NG router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the NG router gets from the modem. https://kb.netgear.com/25891/DMZ-on-NETGEAR-routers
https://kb.netgear.com/24086/How-do-I-set-up-a-default-DMZ-server-on-my-Nighthawk-router
3. Or disable all wifi radios on the modem and connect the NG router to the modem, LAN to LAN configure AP mode on the NG router.
https://kb.netgear.com/20927/How-do-I-change-my-NETGEAR-router-to-AP-mode
Try option #2 first...Hi, thanks for your response - no, the internet light on the router remains white and showing activity. I do not connect to my ISP through a modem/router. The ISP provides a small Fiber Optic connection box, (1GE SFU XPON ONU Model# WK-3801-A) which is seemingly just a small 12v dumb box with an optical input for the fiber and a Lan port to which I connect the R7800 (it has the IP address of 192.168.1.1) - no modem our router function at least that I can access and no wireless function. So I am not sure I can do any of the things you suggested. I did run a network diagnostics test on my Mac and found 2 interesting things in the log. (1) " ———————
Timestamp Name Duration Result Description
——————————————————————————————
Conflicting Wi-Fi CC 0.000 Yes 13:55:28.730 Found conflicting country code(s) (cr)
'Arwen-5G' — 8c:3b:ad:19:3a:8f (US)."It seems the Router network is seen with a county code of "US" and the Gateway with a country code of "cr" (Costa Rica). I wonder if this could be an issue?
(2) I see a couple of pings fail for pinging the WAN DNS server "Ping WAN 1.026 No 13:54:42.725 Could not ping DNS server (17.254.0.22 / 0.00ms / BE / 68 bytes / i=0.100000s / W=1.600000s / t=1.600000s / c=1)"
However there a successful pings on the LAN side to 10.0.0.1
Do these things shed any light on the issue do you think?
crocr76 wrote:
It seems the Router network is seen with a county code of "US" and the Gateway with a country code of "cr" (Costa Rica). I wonder if this could be an issue?
What is it that "sees" the router. Where does it display a country code?
Somewhere in the graphical user interface (GUI)?
However there a successful pings on the LAN side to 10.0.0.1How did the router get that IP address?
You say that the Netgear genie went for that. This suggests that it found a potential conflict on your network.
It isn't the one that the R7800 would go for by default. It goes for that when it sees something already squatting on the preferable default of 192,168.1.1
This seems to be at odd with your comment:
I do not connect to my ISP through a modem/router. The ISP provides a small Fiber Optic connection box, (1GE SFU XPON ONU Model# WK-3801-A) which is seemingly just a small 12v dumb box with an optical input for the fiber and a Lan port to which I connect the R7800 (it has the IP address of 192.168.1.1)What has the IP address 192.168.1.1?
You say it is the "ISP Gateway", but then say you don't have a modem/gateway. That is a local IP address. Not something than an ISP allocates to you.
Whatever it is, it doesn't look like a dumb box.
Google suggests that the WK-3801W does wifi.
If your WK-3801A is similar, it looks like a modem/router. (I can't find anything about the WK-3801A.)
I'm probably missing a lot here. Your initial message is kind of hard to follow. Not least the layout of the network.
What order are all these boxes in?
