I have discovered that if I turn off the router and the range extender for a few minutes then reboot the router and then the extender, they do briefly connect and I can connect to the WA730 over wifi...

Region : UnitedKingdom Model : TL-WA730RE Hardware Version : V2 Firmware Version : ISP : Sky I went thru the quick setup for my new range extender and it appears to be configured correctly to connect...