Different WiFi speed with main power and battery

Hi,
I have a 4mbit adsl connection, I've noticed that when the notebook is connected to the power the navigation speed is very fast, when powered with the battery the speed drops to 5-6 KB/sec.
There's some setting to resolve this problem?
Thanks

Hello Fabio
Its a strange issue but firstly you can check the power settings in the wireless card properties. Please go to Device Manager then right click on Wlan card ->Properties.
There you should find a Advanced tab. All settings should be set to Use default value and Highest.
Best regards

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    Its a strange issue but firstly you can check the power settings in the wireless card properties. Please go to Device Manager then right click on Wlan card ->Properties.
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