iPhones wifi slower than EDGE

[Weee]

Problem is wile my iPhones wifi is wery slow. Installer refreshing sources takes a 10min, i test speed with: http://i.dslr.net/tinyspeedtest.html
My EDGE - 180 kb/s
Wifi - 30-60 kb/s
My frend test iPhone in same network and his get Wifi - 800 kb/s

 

[philgilder]

try a network settings reset

 

[Weee]

Reset was not help.
My Wifi is slow in all Wifi networks.
i try to reset all setings in iPhone but its not help.