Windows 10: WiFi 5 ghz connection issue

My laptop doesn’t want to connect to 5 GHZ network. I run Dell Inspiron 3521laptop with Windows 10 and a DW WLan card. It can only connect to 2.4 GHz

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5 gHz Wifi

I installed a new Cable Modem Router that has dual band, 2.4 gHz and 5 gHz wifi. Everything works fine on my cell phones but when I connect to the new wifi, my computer does not see the 5 gHz wifi. I am using Windows 10 on a HP Pavilion g6. The computer
is more than 5 years old. Is there a way to get the computer to recognize the 5 gHz wifi, which is more reliable than the 2.4 gHz?

 

Lumia 950 can't detect 5 Ghz WIFI

Hi

I had the same issue that my Lumia 950 could not see 5 GHz wifi network.

Found out that Lumia could not connect to 5 GHz wifi with higher 5 GHz Channels. My router had channel 157 as default.

Changed wifi settings of 5 GHz network to use Channel 36 and it works now.

 

Looking for my 5 GHZ wifi network

Time ago, at the very start of my contract with my wifi network. I could choose from my 2.4 GHZ and 5 GHZ wifi easily from my computer (Windows 10) and my phone (7s) everything was good and I used to be connected all the time to 2.4 GHZ wifi. Nowadays I'm
trying to connect to my 5 GHZ wifi through my phone and my computer and I can no longer connect my computer to that wifi service, It used to appear as a normal wifi network but now it doesn't, my phone can easily connect to it and work with it so I don't understand
why my computer can no longer connect to it now. I tried to update and roll back my wifi driver and it still don't appear, I tried to make the wifi 5 GHZ connection to hidden and therefore try to connect to it and it didn't work. I tried a lot of things and
it still doesn't.

I really need help because the 2.4 GHZ is too slow for the things I need to do and that annoys me!.