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Reference Guide 79
Troubleshooting
Remote control problems
If the remote control does not operate:
❏ If the indicator light on the front of the remote control blinks
when you press buttons, the remote control is working properly.
If the light does not blink, install two new AAA batteries in the
remote control.
❏ Be sure nothing is blocking the infrared receivers on the front and
back of the projector. Move to within 9 m (30 ft) of the projector.
❏ Open the on-screen menu and select help > Diagnostics. Run
remote control tests.
If only the mouse and page up and down buttons do not work:
❏ Be sure you have a USB connection between the projector and the
computer.
❏ Open the on-screen menu and select help > Diagnostics. Run
remote control.
Networking problems
If you cannot access the projector via the web:
❏ Check that you are using the correct IP address. The projector's IP
address is shown in the on-screen menu on the projector.
❏ Check the network cable connections at the projector and at the
wall.
❏ Check the left indicator light on the LAN port on the projector. If
the light is not on, the network might not be active. Try a different
cable or check the network outlet at the wall using a computer.
❏ If your model includes an L1581A Advanced Connectivity
Module, see the L1581A manual.
❏ Check whether the projector’s IP address shown in the on-screen
menu is 169.254.x.x. If the projector is set to use a DHCP server,
this address means no DHCP server is available. If the projector
does not use a DHCP server, this address means no IP address is