Why Windows 10 Update cannot connect to its update servers even though there is a working internet connection?
About my setup
- Running Windows 10 on a PC behind a dedicated firewall (pfsense 2.2.5)
- There is internet connectivity, port 80 / 443 works fine for anything else
- Connecting the Windows 10 PC directly to my ISP's modem allows to update Windows 10 => suggests that the firewall is causing the problem
Already checked
- pfsense forum with the result that Windows 10 update should work without any hick-ups (not running any proxy)
- Found and tried the resolutions mentioned in the MS Support article Can't download updates from Windows Update from behind a firewall or proxy server
Still, Windows 10 (version 1511) cannot update itself when I run it behind my firewall.
Any other suggestions/ideas?
Best Answer
Answering my own question.
I found the Windows Update Troubleshooter for Win10 from MS.
While running it, it in fact found and fixed a problem. After that, my Windows 10 can update itself now (great).
So, even though everything suggested a problem with my pfSense firewall it was some problem with the Windows Update itself.