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I am sitting next to my router and I don't see full wireless signal since I upgraded from ubuntu 11.04 64bit to ubuntu 12.04 and I noticed more battery usage in my laptop , since I upgraded . (that makes sense when the wireless signal is weak the laptop uses more energy)

my wireless card is Intel Corporation Centrino Wireless-N + WiMAX 6150 (rev 67)

I have toshiba Satellite-P745

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You can view your wireless connection details by entering command sudo iwconfig.Well if you want to increase the speed manually, then you can try manipulating the configuration of your wireless by changing the following modes:


try entering command sudo iwconfig wlan0 rate 54M if this can solve the problem. Else you can try to go to following page to have a look at command list and set the command at iwconfig to following mode I describes to have wireless at its best configuration.

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