Wow that's cool!

I've had success contacting support through the website. Never attempted a phone call before. http://www.tp-link.com/en/support-contact.html

Also, please correct the title of your post. It now just says "M." making it difficult for people to know what this is about.

Yes, if your client NIC doesn't support 5GHz wireless, inSSIDer won't detect it for analysis.

For what it's worth, that FAQ article has been deemed out-of-date by the TP-Link engineer I am currently working with on a semi-related issue (see the [Solved] sticky thread at the top about the...

Thank you very much.