I was on TPG's NBN50 plan getting a decent 42Mbps down and 18Mbps up. I upgraded to the NBN100 plan, and the best I get is 48Mbps down and 19Mbps up.   Was I wrong to assume the speeds would double? Download at least? Everything I read before upgrading suggested speeds of 80-90 Mbps.    Do I need to make some changes on my router, which is a Netcomm wireless NDD-0300 supplied by TPG?   The router is hooked up to a Google Mesh which is rated at 300Mbps at 2.4Ghz, faster at 5Ghz, so that's not the bottleneck.   ... View more