I have an old Toshiba with this chip:
It runs dual band and 802.11ac as you can see.
I can't see the WiFi on the laptop: neither band shows up. I tried turning on secondary network and tried ALL encryption types and both bands, including Open access. No signal ever seen by laptop. I see them all on other devices, and no issues connecting. I see numerous other wifi networks in the area on the laptop and can connect no problem to other ones that are encrypted.
Is this a compatibility problem that I don't understand?
Arris chat has not yet been helpful.
Thanks in advance.