Why Wi-Fi and USB tethering do not work with Adguard?

Android does not allow tethered connections to route through the VPN. This is an Android rule that applies to all VPN apps running on non-rooted devices. This is done for security, out of concern that if a malicious individual was able to get access to your tether, they could piggyback onto the VPN connection.

Solutions

1. Disable Adguard when you want to use tethering.

2. If you have ROOT access, you may switch to the proxy filtering mode instead of using VPN. It may be done in Adguard's extended settings.