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Missing 5Ghz Channels

PeteDog
Star

Missing 5Ghz Channels

Like many others, I cannot figure out how to get the 40Mhz and 80Mhz 5Ghz channels to be available.  My current settings are shown below including a screenshot showing that only the 20Mhz channels are available.  How do I make the 40Mhz and 80Mhz channels available?  Had to "reply to my own message and individually attach the screen shots as they do not show in the original message...  😞

 

 

 

Screenshot 2022-03-06 122514.jpg

2022-03-06.png

Model: RAX120|Nighthawk AX12 12-Stream WiFi Router
Message 1 of 8

Accepted Solutions
Razor512
Prodigy

Re: Missing 5Ghz Channels

For netgear routers, the channel width is determined by the “up to” speed.

Up to 4803Mbps = 160MHz channel width, and thus it will only list channels where it has access to a contiguous 160MHz in your region.

Up to 2400Mbps= 80MHz channel width.

Up to 1200Mbps = 40MHz channel width.

Up to 600Mbps = 20MHz channel width.

 

As you pick wider channel width settings, certain channels will be omitted from the list.

 

The overall available channels is related to the regelortory region for the router.

For example, in the US, the following channels are available, and for the 802.11ax routers, they are not really doing 80+80 type setups to deal with gaps.

  • Channel 36      5GHz Band
  • Channel 40      5GHz Band
  • Channel 44      5GHz Band
  • Channel 48      5GHz Band
  • Channel 52      5GHz Band, RADAR Sensitive
  • Channel 56      5GHz Band, RADAR Sensitive
  • Channel 60      5GHz Band, RADAR Sensitive
  • Channel 64      5GHz Band, RADAR Sensitive
  • Channel 100    5GHz Band, RADAR Sensitive, Passive
  • Channel 104    5GHz Band, RADAR Sensitive, Passive
  • Channel 108    5GHz Band, RADAR Sensitive, Passive
  • Channel 112    5GHz Band, RADAR Sensitive, Passive
  • Channel 116    5GHz Band, RADAR Sensitive, Passive
  • Channel 120    5GHz Band, RADAR Sensitive, Passive
  • Channel 124    5GHz Band, RADAR Sensitive, Passive
  • Channel 128    5GHz Band, RADAR Sensitive, Passive
  • Channel 132    5GHz Band, RADAR Sensitive, Passive
  • Channel 136    5GHz Band, RADAR Sensitive, Passive
  • Channel 140    5GHz Band, RADAR Sensitive, Passive
  • Channel 144    5GHz Band, RADAR Sensitive, Passive
  • Channel 149    5GHz Band
  • Channel 153    5GHz Band
  • Channel 157    5GHz Band
  • Channel 161    5GHz Band
  • Channel 165    5GHz Band

 

 

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Message 7 of 8

All Replies
PeteDog
Star

Re: Missing 5Ghz Channels

 
Message 2 of 8
PeteDog
Star

Re: Missing 5Ghz Channels

 
Message 3 of 8
FURRYe38
Guru

Re: Missing 5Ghz Channels

Message 4 of 8
PeteDog
Star

Re: Missing 5Ghz Channels

Will try your suggestion tomorrow. Smart Connect NOT enabled. Thanks
Model: RAX120|Nighthawk AX12 12-Stream WiFi Router
Message 5 of 8
plemans
Guru

Re: Missing 5Ghz Channels

You've got it setup correct. 

When you're using 160hz wide channels, you select and channel and get channel overlap that covers the 160hz wide. 

You won't "see" the 160hz wide broadcast unless you use a wifi scanner like insidder or winfi.

 

https://help.keenetic.com/hc/en-us/articles/360012060379-Available-channels-on-the-5-GHz-Wireless-ne...

Message 6 of 8
Razor512
Prodigy

Re: Missing 5Ghz Channels

For netgear routers, the channel width is determined by the “up to” speed.

Up to 4803Mbps = 160MHz channel width, and thus it will only list channels where it has access to a contiguous 160MHz in your region.

Up to 2400Mbps= 80MHz channel width.

Up to 1200Mbps = 40MHz channel width.

Up to 600Mbps = 20MHz channel width.

 

As you pick wider channel width settings, certain channels will be omitted from the list.

 

The overall available channels is related to the regelortory region for the router.

For example, in the US, the following channels are available, and for the 802.11ax routers, they are not really doing 80+80 type setups to deal with gaps.

  • Channel 36      5GHz Band
  • Channel 40      5GHz Band
  • Channel 44      5GHz Band
  • Channel 48      5GHz Band
  • Channel 52      5GHz Band, RADAR Sensitive
  • Channel 56      5GHz Band, RADAR Sensitive
  • Channel 60      5GHz Band, RADAR Sensitive
  • Channel 64      5GHz Band, RADAR Sensitive
  • Channel 100    5GHz Band, RADAR Sensitive, Passive
  • Channel 104    5GHz Band, RADAR Sensitive, Passive
  • Channel 108    5GHz Band, RADAR Sensitive, Passive
  • Channel 112    5GHz Band, RADAR Sensitive, Passive
  • Channel 116    5GHz Band, RADAR Sensitive, Passive
  • Channel 120    5GHz Band, RADAR Sensitive, Passive
  • Channel 124    5GHz Band, RADAR Sensitive, Passive
  • Channel 128    5GHz Band, RADAR Sensitive, Passive
  • Channel 132    5GHz Band, RADAR Sensitive, Passive
  • Channel 136    5GHz Band, RADAR Sensitive, Passive
  • Channel 140    5GHz Band, RADAR Sensitive, Passive
  • Channel 144    5GHz Band, RADAR Sensitive, Passive
  • Channel 149    5GHz Band
  • Channel 153    5GHz Band
  • Channel 157    5GHz Band
  • Channel 161    5GHz Band
  • Channel 165    5GHz Band

 

 

Message 7 of 8
PeteDog
Star

Re: Missing 5Ghz Channels

Thanks for the "channel tutorial".  I understand now that (for instance) the 160 Mhz is not really one channel but a combination of channels to make up the 160 Mhz.  That's why you have fewer to choose from the wider you go.  Thanks!

Model: RAX120|Nighthawk AX12 12-Stream WiFi Router
Message 8 of 8
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