In the middle of doing some things on my Toshiba laptop a couple of hours ago, it suddenly lost the Internet connection. Checking the connections said that no wi-fi was available. Tried Windows 10 connection repair, and it doesn't repair. Despite that, when I look at potential connections, it shows Wi-Fi1 as having 5 bar strength. I plugged in a Belkin wi-fi adapter, which introduced "Wi-Fi2"). Wi-Fi2 (i.e., thru the Belkin adapter) connects fine. Does this mean that the ethernet adapter in my laptop has died, or what?