i have 5210 cpe .when i plugged in poe & power cable no led blink.but i checked that 12v are going in.how can i repair it .and use again rightly.

 

Certificate of profficiency in English? I really doubt that, and I don´t even want to know why it wants 12V.

 

Hello,

We are no mind readers.
What IS an 5210 cpe?

Bertus