Camera is a IP Based and configured as a Static IP.

No other devices are connected to the POE's, because this POE switch has only one POE port and Ethernet Port.

For IP conflict we checked that with the camera IP, but no other IP's are same

In this Ethernet switch we connect only two other devices one is PLC and another one is Moxa Wifi both are different static IP's.

Also we tried without these devices also...

Only with Camera - POE - Ethernet - Laptop...

This also not working.