I have purchased a TP-LINK TL-WN781ND 150Mbps Wireless PCI Express Network Nic and running on Ubuntu latest version 14.04.2 I'm getting very slow speed.
Please see the required information about my network and devices here.
But when I am using Mac and Windows systems I am getting good speed. Only problem when comes in the Ubuntu OS. And the wireless is showing very less range when connecting in Ubuntu OS (Showing hardly one bar out of 4 bars).
My router model:
Cisco Linksys E900 and is set in Network Mode:
Upgrading the kernel gives:
linux-generic is already the newest version.
The speed is better when using:
ethtool --change eth1 speed 10 duplex half autoneg off
The speed doesn't improve beyond
ethtool --change eth1 speed 100 duplex half autoneg off