Cloudflare Warp breaks Vivaldi?

myusernamegoeshere

Whenever I enable Cloudflare Warp on my PC it seems that Vivaldi is no longer able to use the internet.

Specifically I see an error message like so:

Your Internet access is blocked
Firewall or antivirus software may have blocked the connection.
Try:

Checking the connection
Checking firewall and antivirus configurations
Running Windows Network Diagnostics
ERR_NETWORK_ACCESS_DENIED

I have secure DNS enabled in vivaldi://settings/security and have noticed that if I flip the DNS provider from "OS default" to Cloudflare then the error switches to the following:

This site can’t be reached
www.anywebsite.com’s server IP address could not be found.
Try:

Checking the connection
Checking the proxy, firewall, and Secure DNS configuration
Running Windows Network Diagnostics
ERR_NAME_NOT_RESOLVED

The issue seems to be specific to Vivaldi - I'm able to browse websites without any problems with Cloudflare Warp if I switch to Microsoft Edge, and Vivaldi works as expected when Cloudflare Warp is disabled.

Any idea how to resolve this problem?

Hadden89

This post is deleted!

myusernamegoeshere

Now 6 months later I'm still encountering this issue and the only relevant results to my Google query seem to be this thread.

Starting to wonder if the only way out is to switch to a different browser.

Hadden89

@myusernamegoeshere I don't use warp, but they have a dedicated page for browsing issues.

(other browsers might work due default whitelisting. but not expert on the matter).