Hello all,

got a laptop upgrade - Lenovo W530 with Centrino Ultimate-N 6300 AGN). As far as I understand it uses multiple antennas (3) to "bridge" wifi connection to a compatible router with multiple antennas. Got a new wifi-router - Asus RT-N66R with 3 antennas promising up to 450Mbit/s connection.

However, no luck with linux. The laptop came with Win 7, so I tried that and - *magic* - shows connections 300, 450 Mbit/sec. But with linux (Fedora 18 - kernel 3.8.11-200.fc18.x86_64) I get pathetic speeds of 54Mbit/sec, sometimes it drops to 1Mbit/sec.

Anybody has experience tuning performance on those? I tried multiple settings on the router, but that doesn't seem to be a problem - Win 7 worked right away.

--Pavel.

Hi

See which kernel module is being used in Linux to handle your wireless chip:
lspci -k

Then check with...
modinfo <modulename>
...which options you have available.
Load the module with everything disabled that you don't need immediately (e.g. bluetooth sometimes conflicts with wifi) and see if that fixes the issue.
On one of my notebooks I had to disable HW-encryption of wifi to get a stable connection.

Cheers

I am having the same issue with the same W530 machine. Can you elaborate on how to disable HW-encryption?

so you are having the same issue with a very old centrino CPU laptop using the long UNSUPPORTED fedora 18
fedora 18,19,20,21,22,23 are ALL unsupported
and fedora 24 will be unsupported soon

install fedora 25 first

Solution found here: http://www.linuxquestions.org/questi...-a-4175599455/

Thanks.