Solve : wifi taking very long time to start or doesn`t?

1.	Solve : wifi taking very long time to start or doesn`t?
Answer» when i turn on my computer, my wifi adapter often takes unusually very long time to start and most of the times it does`t start at all. All this takes more than half hour after which i`ve to force the computer to RESTART. Now this time it starts normally. please HELP specs..; laptop- hp pavillion dv6 OS- Windows 7 home prem. 32bit wifi- broadcom WIRELESS lan adapter 802.11 actually after starting windows, it hangs untill wifi starts. but wifi takes very long time and most of the times it doesn`t start at all!! i don`t know what to do?? i tried to update the wifi DRIVER but it is the latest version . no idea !! please suggest!!

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