Solution to WiFi drop-out on Windows 10 PC
At some point (not sure what the trigger was), my PC started to drop its WiFi connection. This would happen several times a day and was very frustrating!
Right clicking on the wireless icon in the task bar (bottom right) and hitting Troubleshoot would temporarily fix it most of the time. Sometimes, I had to go into the device manager (windows key + x) and disable and re-enable the wireless network adapter to get it going again.
In the meantime, I kept trying to find a permanent fix. In the Router (Sagemcom), I switched the wireless band from N to G, amongst other things. I changed the DNS server settings from automatic to 126.96.36.199 and 188.8.131.52. I messed around with Firewalls and other security settings and a ton more things that I've forgotten at this stage.
Finally, I went into my router logs (http://192.168.1.254/) (Modem Config>Maintenance>Logs) and saw this recurring error; "DNS name resolution failure (api.intelsa.intel.com)"
If you found this post as a result of a search on this problem, I hope this helps. If you just read the post for no reason whatsoever - WTF! ;-)