When Connecting To 3G The Phone Network Connection resets!

[Guest asfaijk]

Does anyone has a solution for my problem ? I live in the netherlands with telfort provider,

when i have bandwith automatic on, every 20 or so seconds, on 3G the phone connection resets ( same effect as if you would switch airplane mode on and off.

when i set the bandwith to 900/1800, My phone works perfect, but then i can only use gprs internet ( Slowwwwwwwwwww ) does anyone has a solution to my problem ?? i tried flashing different nb0/pda/csc/Eboot files but the problem stays!

thanks In Advance