Hello there! I am Charity, I'm an Independent Advisor. I'm glad to help you today!
Thank you for the information. Unfortunately, based on the specifications of your card, it can only support 2.4ghz. Your card's wireless frequency is : 2.412~2.472GHz
The only solution is for you to purchase an external network card (USB or PCIE) that supports 5ghz
For example :
https://www.amazon.com/TP-Link-Mini-Wireless-Su...
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install.
Please let me know if you have any more questions, I'll do my best to respond as soon as possible.
Kind Regards,
Charity (GMT+08:00)
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Please note that things might need more than one reply to completely resolve your issue, as it will completely depend on the complexity of the question and the amount of detail that you have provided me.