Wireless N adapter for technicolor 582

[#1]

Hi,
I have recently had fibre installed and have the technicolor 582 router. I am not getting the speeds I should be so have read that my computer needs to be compatable with 'N'. I have checked and it is only compatible with 'G', so i need an adapter.
Could anyone please recommend a good wireless 'n' adapter that is compatible and works well with this router?
thank you

[#2]

that depends.  What speeds do you think you should be having and what are you getting?  Are you talking wireless speeds or is the problem with the speed you are getting down the line?

[#3]

The speed I should be getting is nearly 40mb. I'm getting 20mbps.
I don't think it is a problem with the speed down the line. My computer is quite old so only supports 'G', so from what I have gathered from the plusnet help pages I need a wireless n adapter, but I have no idea which one would be best?

[#4]

G supports up to 54Mbps, so it's doubtful that that's the cause of your problems.
Have you done a test on http://www.speedtester.bt.com/?  Could you run the second test (it shows up after you complete the first one and is called Further Diagnostics) and post the results on here?  I don't know how you are set up but if possible could you do it with a wired connection (connect your PC/laptop) to the router with an ethernet cable).

[#5]

The useful throughput of 11g is far less than 54Mbps.

[#6]

but it depends on a number of things and until other factors are ruled out it would seem a waste to buy an N adapter if not necessary, no?

[#7]

Yes, do a wired speedtest to show the line speed.
But I wouldn't expect much more than 20Mbps speedtest result (throughput) over 11g.

[#8]

you can get anything from 20 to 45Mbps over g, although admittedly the latter figure would need some help from lady luck, but without knowing the exact setup it would be impossible to hazard a guess.  I was trying to eliminate the obvious before jumping to conclusions, that's all.