tady: https://downloadcenter.intel.com/Detail_Desc.aspx? ProductID=3507&DwnldID=22547&lang=eng&iid=dc_rss
btw jsou "nové" drivery, ani ne 3 týdny staré..
edit: podle http://forums.lenovo.com/t5/IdeaPad-Y-U-V-Z-and-P- series/Very-slow-download-speed-from-wifi-on-new-I deaPad-Y500-95412SU/td-p/965079 se doporučuje na routeru vypnout WPS a WMM.