IP Camera Not detected

Hello,

IP camera connected to Rasp PI 2 board via Power over Ethernet (PoE) using network cable.
RPI2 -> network cable <-> PoE <-> Camera

It detected on other boards and PC.

When i switch on camera status states
Three red blinks (~1-2 seconds) --> iv) Failure to establish connection

Installed Ubuntu mate and all the packages and dependencies of the cam.

Any solution?

Answers appreciated