After piHole and AdGuard app in the router now my wide used solution that works it to override dns settings to adguard, works in maaany routers i have tested.
AdGuard DNS 94.140.14.14 94.140.15.15
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So anything else I can try which will work out of the box? For links and guides I'd be happy. PS: I got dual antennas what would come into your mind to do with it?
AdGuard DNS 94.140.14.14 94.140.15.15