Someone at the HP Global support community used some of the previous posts in this thread as a reference. It contained enough misleading information to confuse him.
802.11 b\g\ are 2.4 GHz bandwidth only
802.11n can be 2.4 & 5 Ghz bandwith or only 2.4 Ghz. It depends on the wireless tranceiver's capabilities and the antenna setup.
The very first first thing you need to do is to determine if your installed wifi adapter has 5 GHz capability.
Since the wifi adapter drivers are installed , finding out what it is and its capabilities should be pretty simple.
Open the Device Manager and expand the Network adapters section. You should see a wireless adapter device with a brand and model.
Write down the brand and model information and use it in a Google or Bing search as follows:
Brand and model number (substitute your adapter's brand and model number) and the word specifications.
The specifications that the search returns will tell you in which band the wifi adapter operates.
Look for 2.4 and 5Ghz in the bandwidth operation specification. If you only see 2.4 Ghz, then now you know that 5GHz operation is not possible.
An alternative, now that you are armed with the brand and model information, is to go to the wifi adapter's company website and search for information there.
There is no amount of tweaking in the adapter properties settings that will enable a wifi adapter that is only capable of 2.4 GHz operation, to operate in the 5Ghz band.
A 2.4 Ghz only capable wifi adapter will not even recognize the presence of SSID's that are broadcasting on 5Ghz.