NWCONFIG-X-516: The first octet of the IP address determines the type of network. In Class A networks, the first octet can only contain numbers in the range range. In Class B networks, the first octet contains the numbers in the range range. In Class C networks, the first octet contains the numbers in the range range.

NWCONFIG-X-516: The first octet of the IP address determines the type of network. In Class A networks, the first octet can only contain numbers in the range range. In Class B networks, the first octet contains the numbers in the range range. In Class C networks, the first octet contains the numbers in the range range.

Source: NWCONFIG.NLM

Explanation: The subnet mask was not set or was not set correctly.

Action: Set the subnet mask using the appropriate values for the network class.