unable to install laravel homestead using command line

i am trying to install laravel homestead in my windows 7 pc but every time fails it starts downloading but after some percentage it stops and display errors like

"SSL read: error:00000000:lib(0):func(0):reason(0), errno 10054"

i have restarted download but every time after some percentage it stops i am tired now please help me

i have installed "vagrant_1.7.4.msi" and "VirtualBox-4.3.30-101610-Win.exe" also

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