My CPE210 has worked fine for 4 years or so but has just stopped working. I have no idea of the problem but the network cable attaching it to my Internet modem is no longer live (ie no blinking lights) . I checked the cable and it is fine. Indeed I have attached it (the cable) to another TP power link extender and it works ok. 

I tried to reset the passive poe adaptor and it has made no difference. Where do I start?

When I power up the kit and try to login to the CPE210 network it just says it cant allocate me an IP address.

The external adapter is hard to access especially during lockdown as I have to get onto neighbours flat roof.