hello guys
so I have purchase a new laptop but it seems like I'm unable to detect any 5 Ghz, so I have done some troubleshoot my router is a AC so it should have no issue not broadcasting 5Ghz, my old acer laptop and my cellphone is able to pick it up without any issue, I have updated to the latest windows 10 (1709) as of today and it still resulted in the same issue and I have also updated the firmware and bios of my laptop and it points to the same issue, my ssid 5 ghz isn't broadcasting at all, I downloaded a third party program and tested it seems like the card is only picking up channel 155 and it broadcast 5 Ghz, so I have changed that in router interface page and it seems to appear, but upon connecting to it, it seems like the speed to be dropping, and it does this for 2.4 Ghz as well, so I'm getting a pretty bad speed, it goes as low as 14 Mbps, my only guess it is a faulty NIC ? the laptop is fairly new and only 3 days old.
I have attached SSU and some picture, possible to hear from someone regarding this thank you.