[ubuntu] Wireless dropping in and out

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http://ubuntuforums.org – I'm very new at this so please take it easy on me. I also see several posts asking questions similar to mine, but I'm having trouble understanding all the information I see. With that said, here it goes. Today I installed Ubuntu 12.04 on my laptop. It's an HP Pavilion dv6 ... Everything is good, except for the wirless connection. The Wifi just goes in and out and keeps asking me for authenication after a few minutes of use. While it is connected to Wifi, it is very slow. I connected using an Ethernet cable, and it is fast and has no problems. Can anyone help me? If you take a crack at it, pl (Hardware)