When Network Protect is set to On in Password Protect, a message is displayed and the settings cannot be changed. You can make changes after setting

Network Protect to Off. s p.49

Sub Menu Function
Wired LAN You can make network settings.
DHCP: You can set whether or not (On/Off) to use DHCP.
If this is set to On you cannot set any more addresses.
IP Address: You can input the IP address assigned to the projector.
*
You can enter a number from 0 to 255 in each field of the address. However, the following IP Addresses cannot be used.
0.0.0.0, 0.x.x.x, 127.x.x.x, 224.0.0.0 to 255.255.255.255 (where x is a number from 0 to 255)
Subnet Mask: You can input the subnet mask for the projector.
*
You can enter a number from 0 to 255 in each field of the address. However, the following subnet masks cannot be used.
0.0.0.0, 255.255.255.255
Gateway Address: You can input the IP address for the gateway for the projector.
*
You can enter a number from 0 to 255 in each field of the address. However, the following Gateway Addresses cannot be used.
0.0.0.0, 127.x.x.x, 224.0.0.0 to 255.255.255.255 (where x is a number from 0 to 255)
MAC Address: You can display the MAC address for the projector.
PJLink Password Enter a password to use when you access the projector using compatible PJLink software.
*
s p.118
You can enter up to 32 single-byte alphanumeric characters.
Web Control Password Set a password to use when making settings and controlling the projector using Web Control.
*
You can enter up to 8 single-byte
alphanumeric characters. s p.112
Network Menu (EB-G5900/G5800/G5600/G5500)
64