PPP link control protocol was terminated error HELP needed

Hello,

Yesterday I tried to connect my blackberry bold 2 9700 t-mobile's wifi internet to my laptop

I installed the desktop manager 5.1 for it and it showed my device being connected to it.

I made a new connection and tried to connect..when I connect it, it says ' registering on to the network' but after few mins it gets disconnected and gives the error no 734 PPP link error

Now please help me

I don't have a carier internet and I am trying to connect my blackberry to laptop using free wifi hotspot internet and not carier internet

Please help me get rid of this error

Thanks in advance.