Not able to see proper visitor locations in 1.9.2 version

Hi All,

I am using 1.9.2 version, and I wanted to set proper visitor location, and for that I put GeoIPCity.dat file into piwik/misc folder and enabled GeoIP (Php) option in Settings/Geolocation, after this setting also I am not able to see the proper Visitor location, still its shwoing united states.

Please tell what settings needs to be done.

Thanks in advance