Finding attached devices

[#1]

How can I find if my Wifi Extender is attached to my Router, and if so, what it's URL is?

Many thanks in advance

[#2]

@simondenyer welcome to the community

Assuming you have a Hub 2 (you didn't say) the link for the Hubs home page is http://192.168.1.254 

Look at >Home >My devices for connected devices.

[#3]

On my Hub One, my wifi extender doesn't show up on the Home page of the router. I can see it on Advanced Settings > Home Network though. Mine is listed as "udhpc...".

Even that page is very hit & miss though. It's always been flaky. Often showing devices as "not connected" when I know they are & sometimes not showing devices connected at all when I'm actually using them. Refreshing will sometimes bring them back, but then others will disappear!

[#4]

Thanks. I found it. As you and others observed, it's not very user friendly, basically listing every devices that has ever been connected to the Hub. But a little patience, and I found my extender!