I'm in Sydney, and only bought my DLink router last week and had similar problem with the DAP-1360, having consistant connection loss. I'm using it as an access point. After trying all the suggestions on forum of changing settings, I changed the Ethernet cable that came with the device. Problem solved so far, no lost connections for over 30 hrs.
I replaced the boxed Ethernet cable with a Cat 6 type Ethernet cable which I got from Jaycar, and they have various lengths from .5 to 10 metres lengths.
Hope this assists.