Cannot Keep Wireless Online (laptop)

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http://forums.fedoraforum.org – Hi I am having a serious issue with keeping the Wireless online under F17. I am not sure what interrupts the connection. A complete reboot is the only way to recover the connection. The lspci command shows the Wireless Adapter as follows ---> 03:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev ff) <--- The Wireless comes up everytime on reboot but I do not know how to reconnect without rebooting. Can anyone help me understand what is potentially going on? ---> uname -a gives the following ---> Linux computer.localdomain 3.6 (HowTos)