@woozle . Yes thank you, logging in via the web interface I get the same result as you. I'll ignore the Tether app.

Sorry for slow reply to your question, I'm new to the TP-Link community and wasn't sure how to reply. I tried to update my original post with software and firmware versions but site only lets me post...

I have just re-configured my RE450 WiFi extender from being in range extender mode, to being in access point mode, and connected it to my router by ethernet cable. It is working fine, and I can...