Macbook Pro 10,1 poor wifi performance

[parkie22]

From my Sofa with the wifi router upstairs the results from speedtest.net are:

iPad 3 - 27.19Mbps

iPhone 5 - 40.20Mbps

Macbook Pro 10,1 - 1.56Mbps

Macbook Pro 10,1 (upstairs sat next to the router) 27.45Mbps

so whats up here, why is my macbook pro so crap compared to my other devices. is there anything i can do to improve this? Even in the same room as the router i don't get close to the available bandwidth of 50Mbps!!

anyone else having rubbish wifi performance with their's?

any advice would be greatly received

P

 

[DeltaMac]

My first thought is to try reseating the airport antennas (there's three connected to the airport card) along with reseating the card, too.
There's a good guide for getting to the card from iFixit