Maximum bit rate for RT3290 driver shown by sudo iwlist scan is 54.
But lshw -C network tell me that my wireless card support 300 megabit 802.11n - "RT3290 Wireless 802.11n 1T/1R PCIe".
Windows / Android / iOS devices working fast as it is usual for 802.11n.
How to do the same for Ubuntu 14.04 netbook with RT3290?
As you can see here, your wireless device is clearly in N-speeds:
Bit Rate=65 Mb/s
The rate shown in scanning is always 54 Mb/s if the router is capable of at least G speeds and even if the router is capable of N and AC speeds. As you can see from your own iwconfig, the wireless device and the router will negotiate the best speed in the connection process.
I know of no method to force the hardware, driver and router to cease negotiations and force 300 Mb/s speeds. There are some things you can try in the router. WPA2-AES is preferred; not any WPA and WPA2 mixed mode and certainly not TKIP. Second, I have better luck with a channel width of 20 MHz in the 2.4 GHz band instead of automatic 20/40 MHz. I also have better luck with a fixed channel, either 1, 6 or 11, rather than automatic channel selection. After making these changes, reboot the router.
Next, I recommend that your regulatory domain be set explicitly. Check yours:
sudo iw reg get
If you get 00, that is a one-size-maybe-fits-all setting. Find yours here: http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2 Then set it temporarily:
sudo iw reg set IS
Of course, substitute your country code if not Iceland. Set it permanently:
gksudo gedit /etc/default/crda
Use nano or kate or leafpad if you don't have the text editor gedit.
Change the last line to read:
REGDOMAIN=IS
Proofread carefully, save and close the text editor.
Next, I'd set IPv6 to Ignore in Network Manager: http://docs.fedoraproject.org/en-US/Fedora/18/html/Installation_Guide/images/netconfig/network-connections-ipv6-ignore.png This example is for ethernet, but you want wireless.
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