I suspect both DNS need to match in order for the browser to know which to send the request to translate say google*com . If they mismatch then the browser gets confused, send to IPv4 DNS or IPv6 DNS.

@IrvSp Mine used to say the exact same thing 9/10. I have not touched anything IPv6, but I may have changed my IPv4 DNS. I have a comparator that ranks IPv4 DNSes in order of ping. I used to use...

@IrvSp

@Jamval https*$$ipv6.army$isp-check$ * = : $ = /

@IrvSp Sorry I Google search ROG Gaming Router Forum. Should be -> Networking -> Gaming Routers. Within the first few posts there's IPv6 that guy is in Dallas and could not get it to work on AT&T...

@IrvSp Stacked just means they are running in parallel. So far I have not had issues, but my preferred IPv4 DNS is actually the AT&T IPv4 DNS. (I put as secondary Google's 8.8.8.8) The only thing I...