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my Internet keep disconnecting every 3 minutes, Ubuntu connected to Internet using my ALFA Wireless adapter AWUS036H without any drivers, but still i get disconnects.. should i install driver for my device?(i couldn't find it anyway)

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Did you install all the updates? – Amith KK Mar 3 '12 at 9:24

Before your Alpha antenna connects to an Internet server , disable it. Go to device manager, look for your Alpha wireless adapter , click on it , go to properties and change the channel to any other than 1. There may be a conflict in your computer with the built in wireless system and the Alpha antenna trying to use the same channel. Click on apply... Restart everything, hopefully it will stay on...

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