Austronesian is usually regarded as a separate family, not related to any other. It is never groupped into Eurasiatic or Nostratic. Yet it seems to me that it may be related to PIE. I wonder whether it is just a coincidence.
Usually the most close relative to PIE among other Eurasiatic languages is considered Chukchi-Kamchadal family.
First of all, lets look at numerals. It is accepted that Eurasiatic languages do not have common numerals because counting emerged after the proto-family split.
one PIE: sem "one united", PA: sa
two PIE: du̯oe̯, PA: dusa
three PIE: trei̯es, PA: telu
four PIE: q̆etu̯ores, PA: apat, sepat
alternations r/l and q̆/p are common in IE family and in world languages. Compare also PIE q̆eta̯ "pair", Proto-Uralic ket-ka "two", Yukaghir ikit "two", Itelmen (Chukchi-Kamchadal family) katxan "two"
It seems numerals greater than four do not coincide.
I PIE: eghom PA: i-ka-u Chukchi: e-ɣә-mi
We PA: i-ka-mi
Thou Chukchi: e-ɣә-tu PA: i-ka-su
It should be noted that Chukchi-Kamchadal family is usually considered the closest to PIE because it is the only family that has a cognate to PIE's first person singular pronoun eghom rather than more ancient mi(n)-based. It is hypothesized that eghom is a compound of something like "e̯e + ghe + mi" which meant "it is me". It seems, Proto-Austronesian had the same pattern.