What's the better choice for 50Mbps, powerline or wifi?

I'm using Asus RT-N12. Wifi now getting 27Mbps download 21Mbps upload

RT-N12D1

Not that far away, I moved my PC downstairs, previously upstairs can barely connect to wifi. I measured if I were to get ethernet cable, I'd need about 25-30 meters.

If calculate distance, somewhere around 10 meters? Under 50 ft. Got wall in between PC and router. Router is in living room, PC is in office room.

On a side note, is the +RM10 upgrade promo still available?

This post has been edited by xHj09: Jan 20 2018, 08:21 PM

after real measurement, i think i need a 50meter cable , i have dogs and robot vacuum at home so the cable will have to go through ceiling, it's quite a big mess. thinking of calling someone to do it. do you know the rate for asking somebody to come pull cable?

alright will call. actually my younger sis's bf called for an upgrade about two months ago, i was busy with work recently and totally forgotten about it

i'm really surprised how you can get maximum speed using wifi, are there no interference?

i've tested AP and wifi extender, both sucks. currently using wifi extender for phone usage upstairs.

yeah thank god I still have a 25-30meters cat5e cable from my old house like 13 years ago. roughly tried measuring, definitely need a 50meter, might buy a coupler with a 25/35m cat5e to extend.

ever heard of coupler reducing speed or increasing latency?