WN3000RP Connected to Router but no internet

[chris0]

Woke up this morning and found my wifi extender is connected to my router ok, but it shows no internet access.
I'm on the latest firmware v1.0.2.80.
I've factory reset the extender several times and my ISP routers config page shows the extender as connected.
Any ideas?

[plemans]

did you rerun the setup using wps or the installation wizard?

Try the wizard if you haven't. 

What router is it connecting to?