QUOTE(berrycoo~ @ Mar 9 2018, 07:19 PM)
I tried powerline adapter before. Langsung cant use in my house. Not sure if its because of 3phase wiring.
Ok ok then I shall get a better router. RT-AC1300UHP the best bet? Any other options I can consider?
your main problem is wifi lower corner to upper other corner.
these 2 areas in any house are most unlikely to share the same phase of a 3 phase power supply.
hence homeplug will do nothing.
other options will involve laying cables, or repeater, extender, access point - more equipment, work, more money, more headaches.
your house is similar to mine, quite typical actually.
no need to fret, wifi tech with good new routers are good enough for that.
higher priced routers can do the job but rtac1300uhp is good enough.
and very consistent: 55ft 5ghz

if u buy at shop, might as well take your unifi id/pw with u, get it set up there with latest firmware, go home plug n play, easy.
remember if yr pc does not have 5ghz, best tobuy a dual band adaptor as the same time.
then u see the improvement in total.
if u get into difficulties, can post in asus thread, many asus users can help u, if u need.
my experience is in post #6739.
https://forum.lowyat.net/topic/4382989/+6720?hl=ac55#bottom