USB Wireless adapter says there is internet connection, but cannot access internet?

[Filipino]

your friend's connection is connected like this: every router has a source (a cable is connected to the WAN port of the router, that cable is connected to your friend's Internet Service Provider.), the USB that you've mentioned is connected to the router's wireless connection. in your friend's case, it seems that there's a connection problem with her ISP (Internet Service Provider), try contacting the ISP and ask them to troubleshoot the problem.

TN: The router can't transmit and receive internet connection if there's no cable connected to its WAN port.

PS: Try right clicking the icon (the one that you've mentioned) and click repair.