slow Lan transfer speed

[kuwaiti]

hi
when i transfer from PC to storage network its only 20MB in a sec

why too slow for cat 6 ? how can i fix it ?

motherboard : rampage extreme ii 2 lan speed 10/100/1000

swich : D-link Gigabit green ethernet DGS-1008D speed 10/100/1000

network storage iomega lan speed 10/100/1000

cables / cat6

links :
D-Link 8-Port Gigabit Green Ethernet Switch (DGS-1008D): Amazon.co.uk: Computers & Accessories

https://iomega-na-en.custhelp.com/app/answers/detail/a_id/27156

[kuwaiti]

or is it normal ?
because when i use cat6 or cat5 ethernet i get same speed

[kuwaiti]

no help ? :(

[rg66]

Are you using Windows 7? This seems to be a common problem. Check out this Google search (http://www.google.co.ug/#hl=en&sclient=psy-ab&q=Windows+7+slow+network+transfer+speeds&pbx=1&oq=Windows+7+slow+network+transfer+speeds&aq=f&aqi=g1g-b1&aql=&gs_sm=3&gs_upl=70l13514l0l13769l46l33l4l9l9l5l1577l23812l4-3.12.12.2.2l44l0&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=1a2d90c2221ff141&biw=1157&bih=840).