Using a second router as wireless repeater

[Jay794]

I got fibre optic installed at my house today, having only a few months ago purchased a new routeR. My desktop PC doesn't have wireless but it is wired to the old router.

As the fibre optic router is downstairs and my old router is upstairs I am wanting to use my old router as a repeater so I can still get online with my desktop (I know I could probably just buy a wireless card but wireless doesn't like walls or floors very much)

The router attached to my PC is plugged in to a phoneline located my parents bedroom.

However the fibre optic connection and router are located in my mums office (downstairs)

I know that sounds complicated lol

My question is how the hell do I use my old router as a repeater so I can get a decent wired connection upstairs.

Routers I'm using

Netgear N150 (fibre optic router)
Netgear N300 Rangemax

I tried accessing the repeater settings in both routers and inputting the mac address like it said to, but the N300 just times out

 

[Jay794]

Bump

 

[Jay794]

Thanks guys great advice. Dist, it's not Virgin Media, I'm with Plusnet 40Mb broadband (well advertised as 40Mb, actual download rate is closer to 500kbs to 1.5mb)

Edit: Just realised how annoying the difference between the big B and little b is, 40Mb is a lot slower than 40MB lol