I changed to my old TP-link1043 and connection are more stable comparing Maxis given Thomson router. Wifi definitely stronger too and installed QoS to the 1043 for better n smooth browsing/torrent/streaming activities.

So far still facing session hang and need to manually disconnect/reconnect too but not as often as when using Thomson router. I called Maxis and demand for a technician call back today, they confirmed the Thomson is giving a lots trouble (We all know ) and they are aware of the recent high ping issue and they are working on it, they promised me within a week the ping issue will be resolve. (As they said need to liaise with TM too, I understand caused Maxis backbone and traffic rely on TM's 1 so i agreed for 1 week let them to resolve the issue)

So for ppl using Maxis FTTH, i would suggest you to change the router if you have the capability to flash/setup/KNOW WHAT YOU R DOING (On your own risk), Thomson router only serves as a oversize phone adapter right now