Seven's adclear update - and also netguard for this case - has this feature they call doze. Practically what it does is that, you have the option to totally lockdown traffic when the screen is off. Main reasons for this is to save battery life, and data as well. I have used netguard and this feature within, and I find it really useful in specific instances. I wonder if we could add this option to adguard. Adguard already has a superior firewall department, and it does it really well.