.bt

Hy guys i cnct my airtel mo thru n5200 .thrug data cable.i received abt 4 kb/sec.in odr sites n if dwnlod a software 4rm nkia it bous up2 17 kb/sec. . Hw is it so. . Prevsly i usd 2 get dat 15 kb/sec. .bt nw hw i dnt knw, .plz solve. . Ds . .i use kaspersky internet security 2009 Smbdy help me