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Nighthawk R7800 - Old wifi card can't see 2.4 Ghz
Hello everyone, I recently had to return a router because one of my laptops was not able to see the Router on the 2.4Ghz network. Network card: A 802.11n Wireless LAN Card from Ralink Technolog...
Hello NetGear TM,
I have ordered the same router again and the problem is still there.
Except this time I played with it a bit more. The UserInterface or the settings of the router are not being displayed/applied properly.
More specifically the 20/40 Mhz cohabitation checkbox appears to be having this issue. Unchecking/Checking the checkbox and applying the settings several times can reproduce and fix the problem. My laptop was able to see the 2.4 Ghz network with both the 20/40 Mhz checked and unchecked. I am guessing the interface doesn't always apply the 20/40 Mhz cohabitation setting when you click apply - although if you refresh the page the checkbox is enabled.
To anyone else experiencing this problem: for the 20/40 Mhz checkbox - try to uncheck it - apply settings, check it apply settings several times until your wifi card will see the network.
Signal detection has everything to do with speed. WMM comes from multimedia it is not related to signal detection at all.
Signal might not be detected on the protocols used by the router to provide higher speeds on the 2.4 ghz band. Meaning that it is not diwnward compatible with older devices and the only way for it to get it to work is to limit the 2.4ghz band with older protocols.
Also i tried all the different options available on the 2.4 ghz band. Even configured it without security.
Configuring the router to work with up to 54mbps was the only way to see the network. ( I think the router at higher speeds loses support for the older devices)
Signal might not be detected on the protocols used by the router to provide higher speeds on the 2.4 ghz band. Meaning that it is not diwnward compatible with older devices and the only way for it to get it to work is to limit the 2.4ghz band with older protocols.
Also i tried all the different options available on the 2.4 ghz band. Even configured it without security.
Configuring the router to work with up to 54mbps was the only way to see the network. ( I think the router at higher speeds loses support for the older devices)
speed matters after signal is detected. Detecting radio signal is matter of RF energy, Still you did not say whether you enabled WMM or not.It is like when you start your car, does it have anything to do with how fast your car can go? Sorry the R7800 took the blame. My -n devices, two wireless printers, a few wireless ip cameras all work om 2.4GHz band with speed set at max. All -ac devices are on 5GHz band.