This seems to be quite a common problem.
If you have a read through this article it may shed some light on your problem - if you scroll down to the post by "techguy" at the end a solution is offered.
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.