If like that, I dunno liao, if you can online, should be able to access it.  For Maxis, prepaid broadband and mobile internet, certain setting needs to be changed, as in "profile". I learnt that the hard way.

For Digi, I think some of the sifus here use Digi.

Assuming you already enable 3G & all that:
*100#
Then 7 Internet & settings
3 prepaid Broadband
10(I think)
1) Hotlink
2) Prepaid Broadband

If using mobile internet, supposed must be in Hotlink profile. If using Maxis Prepaid Broadband(modem), must be in Broadband profile.  I kena before when I couldnt online using Internet Hot ticket in broadband profile.

But......  dont simply2 change for sake of changing, got problem then only change. The above was solution from customer service when I called them about hot ticket.  I use hotlink profile for mobile internet on my N9 cos on the default profile(broadband) I couldnt online using 3G

If tak jalan call customer service :  1300 820120, go to Maxis Centre ask, etc,etc 

my experience is if you are in saving mode this might happen