Hi, had a similar problem with my partners lappie (though not a usb adapter, was wireless connection), quite by chance she found that a simple System Restore got her working ok again. Or you could also try usb adapter in a different usb port.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This 2D animation about monsters is illustrated in a Van Gogh painterly style
How to get WWDC 2017 tickets
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.