Hi,

I've just received my Pixel 9 Pro and installed GrapheneOS. I'm using ProtonVPN on all of my devices (Unlimited subscriber) but it seems to not working properly with GrapheneOS in my case. I'm also using Mullvad as a private DNS (base.dns.mullvad.net).

CONFIG 01 -> When ProtonVPN is activated (Stealth Mode / with or without Secure Core + Always On VPN + Block without VPN)
= Brave or Vanadium is telling me that "DNS address could not be found and no connection in any app.

CONFIG 02 -> When ProtonVPN is activated (Stealth Mode / with or without Secure Core + Always On VPN) =
The connection is back, I can access Brave/Vanadium and any app, BUT my IP address is not masked by ProtonVPN despite being connected to a server...

I can't find what's is wrong0 It has to be with GrapheneOS as CONFIG 01 is the one I'm using on my Android phone and works without any issue.

Any ideas?

    Using a Private DNS from a service other than the one you use as a VPN is not wise. As stated on the GrapheneOS website, if you're using a VPN, you should consider using the standard DNS service provided by the VPN service to avoid standing out from other users. It has nothing to do with GrapheneOS but with your settings. I use Proton VPN as well and have zero issues.

    wWBruceWw are there any error logs standing out in ProtonVPN? I would probably raise this with their support as well. Maybe try reinstall?

      Ok.... The issue was extremely dumb...
      By default the split tunneling mode in Proton was configure on "inverse", so basically except for 2 or 3 apps all the traffic was blocked by default.

      Sorry for wasting everyone's time.

        wWBruceWw Yes... I now remember finding that a few months back too... crazy!