Bootcamp wifi speed is terrible

i got new mbp (returned pc laptop picked work) need windows job (development in vs). installed windows 7 through bootcamp, wifi speed terrible (1.5mbps) in comparison when in mac environment.
checked bootcamp version , 4.0 , checked broadband drivers , windows says theyre date.
ideas can do?

 

bootcamp 4.0? have 3.3 find 4.0

 

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