Hello. It seems that I always had wireless speed issue with my Intel Centrino 6250 adapter in Linux. I had a pretty cheap AP without MIMO and I thought that's AP issue, but now I have TP-Link TL-WDR4300 with 3x3 MIMO and I here are the results: Tested with wget --no-passive-ftp -O /dev/null 'ftp://192.168.5.10/Anime/AIR/\[uguu~\]_AIR_01v3_\(BD-1080p\)_\[976D39A4\].mkv' --report-speed=bits Linux, 2.4GHz. Link speed 130-144 MBit/s, wget result: ~40 MBit/s Linux, 5GHz. Link speed 270-300 MBit/s, wget result: 49-53 MBit/s Windows, 2.4GHz. Link speed 130 MBit/s, wget result: 48-52 MBit/s Windows, 5Ghz. Link speed 300MBit/s, wget result: 72-88 MBit/s 03:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 35) Lenovo X220 192.168.5.10 is connected to LAN port so no NAT is involved.
please try 11n_disable=8
(In reply to Emmanuel Grumbach from comment #1) > please try 11n_disable=8 Thanks, that helped. Are there any problems with this option so it's not enabled by default? Found this https://lkml.org/lkml/2014/4/1/266 My NIC is supported by iwldwm, and with 11n_disable=8 it seems to work much faster (as in Windows). Should I expect stability issues?
Yes - we've had issues with this feature. So I disabled it by default because few people really need throughput and most users need stability.