AX12 not broadcasting 5GHz network

Question

I have had a new Nighthawk AX12 RAX120 router for about 2 months without any issues until today. The 5GHz band is not broadcasting despite the Netgear App and web interface indicating the 5GHz networks is good. For what it's worth, this issue was discovered after our power went out. Device Info: * Nighthawk AX12 RAX120 * Firmware: V1.0.1.122 I have tried the following with no luck: * Reboot the device - Both from the web interface and hard power button * Toggled the Smart Connect ON and OFF * Factory reset - Held the reset button for ~10 seconds and reconfigured * Changed the 5GHz Channel to lower numbers, 36-48 and tried a few of the mid DFS channels Checked: * Enable SSID Broadcast is ON for the 5GHz network * Checked on several devices, mobile, tablet, desktop, laptop. None display the 5GHz network * The Nighthawk web interface and App only show devices connected to the 2.GHz network * On the latest firmware, 1.0.1.122 * 2.4GHz network is working fine

michaelkenward · Answer

What does the 5 GHz LED look like?
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I can't tell from tjhe manual iof that LED is also a switch.
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Have you experimented with older firmware?

rinthos · Answer

I think your best bet would be download a really old firmware version and load it...

If lucky it contains a different wifi driver version which may "wake up" the radio.

If not, try another power adaptor if you can find one, could be providing insufficient power to the router.

Finally, if the above 2 are no-go, I believe you've got a hardware-related issue :(

michaelkenward · Answer

Schmeeds&nbsp;wrote:
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Sadly, the router is a little over a month old and passed the return window where I purchased it so I will have to figure out how to exchange with Netgear directly.
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There is a minimum of a one year warranty on new routers.
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At a quick glance, you never did answer the question about the 5GHz LED.
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michaelkenward · Answer

Schmeeds&nbsp;wrote:
Toggling 5GHz and 2.4GHz bands ON/OFF is done within the admin panel.&nbsp;
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That's not what the manual says.
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Pressing the WiFi button for two seconds turns the 2.4 Ghz and 5 GHz WiFi LEDsand WiFi radios on and off.
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But it isn't always the most reliable source.

rinthos · Answer

Schmeeds&nbsp;wrote:michaelkenward&nbsp;Sorry, you are correct. The router does have a physical button on top (image attached) to toggle all WiFi radios ON/OFF by holding down the WiFi button for 2 seconds. I have used the button to toggle the radios ON/OFF a few times to attempt a kickstart of the 5GHz radio but I still do not see my 5GHz network.&nbsp;&nbsp;I am in the process of returning the router.&nbsp;&nbsp;Sorry to hear, but I think it's the only solution. &nbsp;If it's a warranty replacement, I'd stress both getting a replacement router AND AC adapter.&nbsp;If it's a retailer return/exchange, then obviously less to deal with except for return policies etc.Given current circumstances in various parts of the world due to Covid-19, you may find retailer return policies to be slightly more accomidating...*fingers crossed*.

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AX12 not broadcasting 5GHz network

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