Are you using the Windows wireless connection software? This is known to disconnect (there is a 'knowledge base' article somewhere relating to this). Use the Belkin utility, it solved the problem for me on two occasions.
Surface Pro (2017) vs Surface Pro 4
20 groundbreaking 3D animation technologies coming to Siggraph 2017
iPad Pro 12.9 vs Surface Pro 5
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.