All I know is that it takes ages to fiddle an external modem into useful activity. Check which port it's installed itself on and experimenting with changing the port might fix it. This MAY apply to the printer port too.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This poetic 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.