Gateway error: Unable to identify gateway address.

After gateway firmaware update, error to discover gateway in web interface:
Invalid address ()
Cannot go to settings area.
Also not possible to upgrade XBee firmaware (unit S2C inside gateway), with error:
Unable to identify gateway address.

br
Rait Rand

What is the full part number of the Gateway you are working with and what is the firmware file you installed?

How are you trying to discover the Gateway? That is what application are you working with? Is the gateway connected directly to the PC’s Ethernet port or to a Router or cooperate network with a DHCP server?