I’m not saying this is the problem, but messing with DNS causes many problems. there is a tounge-incheek phrase here, 'It’s always DNS",
Turning off adguard or any of the DNS re-director programs doesn’t mean that the program hadn’t backend changed your DNS and it’s still messing with you.
Check this to make sure the DNS is set to where you want it.
How to set DNS after first install.