Hola,,,this might help

1. check ur modem capability(spesifikasi@keupayaan) handling such bandwidth in and out data etc.

2. take note for all fact ur modem shows on diagnose/summery report.(in configure modem provide by isp=mazix)

3. if step above doesnt help. Make a call to your maxis help centre (google) ask them to provide all details of ur bandwidth and request for assist u in configuring the right setting for the right bandwidth.

i cant even afford on 10mb monthly so i use 1mb streamyx...btw ur pc must has the capability too...