syd-sot-ken-ak2-49.tpgi.com.au IXFR zone transfer

Changes since SOA version

IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.

Not an apex domain The domain syd-sot-ken-ak2-49.tpgi.com.au is not the root of its zone.
Instead, try zone transfer on tpgi.com.au .