Network adapter manufacturer for PC is shown as "unknown"

I have a Ralink Technology, Corp 802.11n wireless adapter, but my Norton Internet Security is showing as "unknown" as the wireless adapter.  Can this happen if Norton does not recognize the Mac address?

 

Copied from: https://www-secure.symantec.com/norton-support/jsp/help-solutions.jsp?lg=english&ct=united+states&docid=v9802256_NIS_Retail_2012_en_us&product=home&version=1&pvid=f-home

 

Adapter Manufacturer

Shows the name of the network adapter manufacturer of the device

The adapter manufacturer's name is based on the physical address (also known as Media Control Access address or MAC address) of the device.