I messed with this for years. This app recently solved it all for me without root : https://play.google.com/store/apps/details?id=co.netpatch.firewall https://

I messed with this for years. This app recently solved it all for me without root : https://play.google.com/store/apps/details?id=co.netpatch.firewall https://play.google.com/store/apps/details?id=co.netpatch.fi... You can use the custom rules to add any of the adblocker lists such as HP hosts, etc. Also whitelists play nice with voip apps too.