I was just surfing online and all of a sudden my web pages refused to load. I checked the internet connection and everything seemed to be working. Using other browsers confirmed this. So, it was just Opera.
I got lucky this time because Opera did finally give me an error page suggesting where the problem was. It suggested changing the DNS over HTTPS settings.
These are basically settings to give you a little more security and privacy. If you want more detail, read this Wikipedia page.
Changing The Settings
Go into the Opera settings using Alt + P or Ctrl + F12, and then click on the word Advanced in the left menu. Then click on Features. Scroll down from there until you see the System section and look for Use DNS-over-HTTPS instead of the system’s DNS settings.
Use the switch on the right-hand side to enable or disable and pick your choice of server from the list.
The problem here is that Opera, as with other browsers, only allows you to choose one server and by rights, you should have two. If you check out your own DNS servers for your internet you usually have two.
To see your own DNS servers, type cmd in the search bar and then in the command prompt type ipconfig /all
Scroll down through the list of information almost to the bottom and look for the lines that read DNS servers…
Other browsers offer the same feature.
In the web-address bar or URL bar, type about:preferences and hit enter.
Scroll down to Network Settings and then click on the Settings button.
Then towards the bottom, you’ll see Enable DNS over HTTPS, check it and choose your server from the list — your choice.
In all cases, if you are not sure what to pick, just use the one marked Default.
Go to chrome://settings/security in the URL bar.
Scroll down to the Use secure DNS section, turn on the switch, and choose your server.
Go to edge://settings/privacy in the web address bar or URL bar.
Click on the three-line or hamburger menu as it’s called sometimes, right next to Settings in the top left-hand corner. And in the menu that opens, click on Privacy, search, and services.
You’ll see at the bottom the option to Use secure DNS to specify how to look up the network address for websites.
Just enable and pick your server. As you can see, mine is greyed out and unclickable. From my screenshot, my browser seems to be “managed by my organization”.