Epson PowerLite 475W EasyMP Network Projection - Operations Guide - Page 41
Troubleshooting, Cannot connect the projector and the computer via wired LAN.
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Troubleshooting 41 Cannot connect the projector and the computer via wired LAN. Check Remedy Are the computer's LAN card and the built-in LAN function Check that LAN is available from the device manager under Control Panel - System - Hardware. available? Is the network cable connected correctly? Check that the network cable is connected correctly. Reconnect it if it is not connected or not connected properly. Cannot connect the projector and the computer via the network. Check Remedy Is the network configuration screen displayed on the projector? Close network settings on the projector, and return to the LAN standby screen. If the network configuration screen is displayed on the projector, you cannot connect using EasyMP Network Projection. Was the network adapter used selected correctly with EasyMP Network Projection? If the computer has multiple LAN environments, it cannot connect unless the network adapter is selected correctly. When using a computer running Windows, start EasyMP Network Projection and select the network adapter you are using from Set options - Switch LAN. Is the firewall turned off, or has the firewall been registered as an exception? When you do not wish to turn off the firewall or register the firewall as an exception, make the necessary settings to open the ports. The ports used by EasyMP Network Projection are "3620", "3621", and "3629". Is the SSID setting different? (Advanced Connection Mode Set the computer, access point, and projector to the same SSID. only) You can make the SSID setting from the projector's Network menu. See your projector User's Guide for details. Are the connection denial functions, such as MAC Set connection permission at the access point to allow projectors to connect. Addressg restrictions and port restrictions, set correctly at the access point? (Advanced Connection Mode only) Are the IP address, the subnet mask, and the gateway address for the access point and the projector set correctly? (Advanced Connection Mode only) When not using a DHCP, adjust each setting. You can make the DHCP setting from the projector's Network menu. See your projector User's Guide for details.