You need to call CS and ask them reset.

If change place, need to call CS again to inform the new address (just simply get a nearby address)

This is how i change and re-connect at different place.

For sure you cannot enjoy full mobility like others mobile broadband with this plan. Need to call and reset each time.

Just tell them you renting house or give sis/bro use lo. They wouldn’t ask too much also.

The reset I mean is just reset their celcom system for my account. Just call CS can do it.

Remember only power up the modem at the location you wanna use. Or else it will lock to the place where you power up after reset.