When I try to assign the gateway IP address in the network settings, the device will not save it and it always reverts back to the default?

AKCP AdministratorsecurityProbe Series, Support

This happens when the device is not able to find the IP address that is entered. When the IP is entered, the device searches for the IP, if it locates it on the network, then it will accept the IP entered, or else, it will revert back to the default IP. Make sure you are entering the correct IP address and try to ping it

AKCP AdministratorWhen I try to assign the gateway IP address in the network settings, the device will not save it and it always reverts back to the default?