I have NBN set up fine.   I am using a somewhat old but servicable Netgear Nighthawk D7000.   To extend the range I just purchaed a TP-Link AC2600 Dual Band Range Extender.   Whilst there are no problems initially finding and setting up the extender, connecting to the networks etc. it invaribly drops out very quickly and stops any access to the network - on the existing or extended networks.   For example, I just plugged the TP-Link back in - immediately, there is no connection possible to any of the networks.   The only solution seems to be to powering off the modem and NBN connection box at the mains - but even then, whilst the connection might be reestablished for a few minutes, it drops out again soon after.   Currently I have turned off the Extender as it is more trouble than it's worth.   Any suggestions?   thanks ... View more