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I have some problems with WiFi on Ubuntu 14.04. My ISP provides me 40Mbps internet but in Ubuntu I can only receive 20Mbps. Same problem I had with OpenSuse distro. On my Windows 7 that problem doesn’t exist, it receives full 40Mbps. Please note that I am not running Virtual Machine, I use dual boot (Ubuntu/Windows 7). Informations about my Wifi card:

03:00.0 Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01)

Any help or suggestion?

Link to Wireless Script results: http://paste.ubuntu.com/10651558/

Jovan Markovic
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  • Please run the WiFi diagnostics and [edit] your question to include a link to the result. – David Foerster Mar 22 '15 at 12:48
  • I have done everything that You asked for. Any suggestion now? – Jovan Markovic Mar 22 '15 at 14:44
  • The wireless chipset only report a maximum available rate of 54 MBit/s for all available access points, which leaves up to 22 Mbit/s net under good conditions, even though the spec declares a support for 300 Mbit/s. I can't find anything on why this is. This may be fixed in a newer version of the ath9k driver, so you may want to try a newer kernel. See https://askubuntu.com/a/598934/175814 for instructions. – David Foerster Mar 22 '15 at 17:55
  • Neither Kernel update couldnt solve the problem :(... – Jovan Markovic Mar 23 '15 at 18:37
  • It doesn't look like a client side issue. The local side can do up to 300 Mbps but for some or other reason the router itself is only advertising 56 Mbps... Is there a way to upgrade the router's firmware? – Fabby Mar 25 '15 at 20:31

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