Where is the wifi on the desktop situated? It could be that the tower is partially screening the signal, what is its strength?
Have you changed channel on the router?
Is the desktop's wifi's driver up to date?
Huawei P10 review
1995-2015: How technology has changed the world in 20 years
An overview: What leading creative agencies are doing to improve diversity
New iPad, iPhone SE & Red iPhone 7 on sale now
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.