Why AdGuard blocking completely http3 and how to unblock?


Beta Tester
Hello. unfortunately I have to pause AdGuard every time to access services using http3. Simply whitelisting the site doesn't work, and I couldn't find any settings for that either.

As I said in the title, why AdGuard blocking completely http3, is there any way to overcome this obstacle or is there a work about it?

Thank you.


Staff member
The problem with HTTP3 is that AdGuard cannot yet filter it so instead of that we suppress it and therefore the apps fallback to H2.

We're going to add full QUIC filtering capabilities in the future, though.