I have the same problem too since last week. At first I seek help through their twitter @MaxisListens. They suggest disabling ipv6 through network adapter for Windows and it works! But, my Android mobile on WiFi have the same problem. So, they guide me set static IP on the phone. I'm like really!? Sounds like a work around than a proper solution. Anyway, it doesn't work either. So, they escalate the matter to the relevant team. Minutes later (salute) they called me and I tell them my current situation and the solutions that I've tried. They were surprised that setting static IP on my phone didn't work. So, they guide me through again too make sure all settings is right. Still the same. Then, they recommended the best way is to re-setup the maxis gateway to disable the ipv6. After that they ask me test my phone again. Still same. They sounded disbelieved that it didn't work just because it has worked for others! Ask me to restart the phone and call back if still have problem. So, tried it and it still didn't work. I thought my phone got problem cause my Windows is working. Then, I taught if already disable the maxis gateway then it should work as well if I re-enable my ipv6 on my laptop settings. My luck it didn't work. Next day called them back and I explained my situation again. Again they sounded disbelieved. So, they say I need to disable my ipv6 on my laptop even if I already disable it on gateway. Ok I unwillingly complied. I ask them this is a temporary solution right? They say no it is considered a solution if it solves the problem. Red flag. Anyway, since mobile cannot disable ipv6 they say will escalate the matter to their technician and they gave me a report number. Windows problem considered closed. Today, still no news from them. Will update you guys if any.