I'm using Ubuntu server as my NAS and is connecting and mapping drives successfully through, XP Vista, Win 7 Win 8.1. Lately I've installed Windows 10 Pro on to another PC which after the installation completed I can also map drives successfully. Then windows 10 downloads the latest update/upgrade to Windows 10, Version 1511, build 10586 and suddenly the Ubuntu server will not appear in the windows network window and neither can I map any drives. It's as simple as that - I've gone so far as to install earlier and later versions of the network device driver but to no avail. I'm running Zone-Alarm Pro on all my machines and cannot blame the Zone-Alarm software because I can access the Ubuntu server and map drives on other machines successfully not running Windows 10.

Thoughts, ideas please. Thank you.