Hi I can use all my browsers in W10 (Firefox is default..) However, about a fortnight ago I started having problems with some sites for example CPUID and when I visit some of these sites I get the message "windows could not automatically detect this network's proxy settings.." and cannot connect to the site even though the Google preview comes up fine for the site..

The sites are identically unable to show up in IE11, and Edge.

Any ideas why I can connect to the majority of sites but not these few seemingly random ones?

Thanks for help in advance..