I have Maxis One Prime package. Maxis used to gave me a back up sim without the Dongle(No Stock that time) and I used the sim card to put in Wifi Modem and can use without any problem. After some time, I gatal-gatal called Maxis to asked for the Dongle and they gave me a Dongle together with new sim card.
The previous sim card have been canceled by Maxis and the new sim card wont work with the wifi modem.
Plugged the Dongle to my laptop also can't work. Put the sim card into my phone also wont work.

It seems it only work on the Dongle plugged in to Maxis home fibre router. Now i regretted calling Maxis to ask for the Dongle.