SOLVED Cannot access wikipedia.org

[dahai8]

This just started happening today.
when I try to access wikipedia.org on any browser on my Windows 10 PC (Chrome or Edge), it just times out with:

This site can’t be reached​

www.wikipedia.org took too long to respond.

Try:

• Checking the connection
• Checking the proxy and the firewall
• Running Windows Network Diagnostics

ERR_CONNECTION_TIMED_OUT

However, on my Android phone, on the same wifi network, it loads quickly without any issues.
I have tried resetting the network adapter:

netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns

And then rebooting. No effect.
Then tried flushing the routing tables:

Checked the hosts table in C:\Windows\System32\drivers\etc - there are no active entries
Reset all routes: route -f
Turned off Windows Firewall

Rebooted after each of these and still no joy

Any ideas??