Check the following to identify the cause of problem.

[Check if the product and the computer are on the same network segment]
The product and the client computer running the configuration utility must be in the same product segment.
->The product and the client PC running the configuration utility must be in the same segment.
->If there is no router involved, be sure to assign an IP address for the product and the PC within the same network segment.

[Check if the PC running the configuration utility has an IP address assigned]
->Verify the PC's network setting via Network properties, or using "ipconfig" command.
->If the PC does not have an IP address, configure an IP address.

[Check if there is any router or DHCP server that can assign IP addresses automatically]
->The automatic process may have assigned an IP address to the product with which the network communication cannot be established with the PC.
->Configure IP addresses in the same local environment where the router or server does not exist when installing the product for the first time.

[The product being installed has previously been configured with different setting information]
->re-initialize the product to factory default and retry the configuration.