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Second 5Ghz channel disappeared and remaining channels signals are intermittently dropping
I have a Nighthawk RAX70 and recently the second 5GHz channel has disappeared. Also, the Wi-Fi signal has started to drop frequently in the 2.4Ghz and 5GHz channel 1. Neither problem ever happene...
The firmware version was V1.0.14.134. I just updated it to V1.0.15.146 after asking the question.
The modem is a Xfinity XB8-T. I tried changing the LAN cable, which did not help.
2.5GHz:
Channel: Auto
Mode: Up to 600 Mbps
5GHz-1:
Channel: 44
Mode: Up to 1200 Mbps
5GHz-2:
Channel: 153
Mode: Up to 2401 Mbps
All channels have SSID Broadcast enabled.
I live in an apartment complex, so there are Wi-Fi neighbors. I have around a dozen of those, but they have remained constant.
After the firmware update, I performed the complete factory reset as you described and set the DHCP range to what you specified. Unfortunately, none of this has worked.
Strangely, when I was first trying a power cycle, I moved the ethernet cable from the router to the modem and the 5G-2 network appeared. But I could not actually connect to it. After the power cycle it disappeared again.
I do appreciate the assistance you are offering.
memeticist wrote:
The modem is a Xfinity XB8-T. I tried changing the LAN cable, which did not help.
The cable bit is just the usual boilerplate red herring. I'd say that 99.99 times out of 100, perhaps even more, it is pointless.
That XB8 router (not sure that the T means) looks suspiciously line a gateway, a combined mode/router.
This means that you are piling router on router.
Two routers on your network can cause headaches. For example, you can end up with local address problems. Among other things, the other router can misdirect addresses that the Netgear router usually handles, such as routerlogin.net or the usual IP address for a router, 192.168.1.1.
This explains some of the other drawbacks.
What is Double NAT? | Answer | NETGEAR Support
Unless you have specific reasons for using two routers – to create two separate networks for example – it is often easier to use just one router and then to set up the second router as a wifi access point. Netgear advises this, as does just about every site you will visit.
It may be possible to put the modem/router into modem only (bridge) mode and then to use the second device as the router.
xfinity xb8-t bridge mode - Google Search
Sometimes it is easier to put the second router into AP mode. But that has its own drawbacks:
Disabled Features on the Router when set to AP Mode | Answer | NETGEAR Support