1 DNS A record, 2 ip addresses and 2 servers windows cluster for Always on SQL

so 1 DNS = SQLDNS

1 IP 10.10.10.1/30

2 IP 10.10.10.2/30

So this is my war at work. They have SQL always on set up, ip 1 & 2 are set up as active and stand-by but pointing to same dns A record. It keeps flipping between ip's because of the round robin default rule in dns server. I've read that if disabled it can cause problems. reverse lookup for secondary ip fails as either it is not configured or just because of the state of the interface being stand-by mode which means it does not reply to pings until ip 1 is actually down.

I am a network guy so easy on me on the clustering, SQL HA or DNS specifics..., I know a bit of all but no expert.

Thanks in advance to all