I got a Mercury ch7465lg modem, which is capable of n wifi. Currently I use it with n only and 40MHz. It cannot do 20/40 according to the admin site. The channels are okay.
I got a PC with tp link tl-wn781nd, which is a 150Mbps wifi card. I had driver issues (blue screen) with the windows installed driver, so I installed a driver manually from the chipset manufacturer: Atheros (AR9485). Now Windows 7 tells me that I have 65Mbps connection which is weird.
I got an asus t100ta-dk046h tablet, with 150Mbps built-in n wifi and Windows 8.1.
When I try to copy files from a samba server with cable I got 680Mbps download speeds from the PC. When I try the same with wifi, I got 44Mbps from the PC and 50Mbps from the tablet. If I try from both simultaneously I got about 40Mbps by both client machines. I tried the PC with Fedora as well, I got only 24Mbps. (I assume the speed highly depends on the drivers.)
Is this a normal n wifi speed or can I do something to increase it?