❺ Troubleshooting; Symptom, Possible Cause, And Remedy - Elmo Cast Instruction Manual

❺
Troubleshooting

◆Symptom, possible cause, and remedy

Check the following items. If any abnormality is found, consult the dealer from whom you purchased this
product or our nearest branch/office.
Symptom
No image is
displayed.
It is not possible to
connect the dongle to
the network.
It is not possible to do
mirroring.
Projected video is
jerky and not smooth.
When the number of
devices for
simultaneous
projection is
increased, the
projected image
sometimes freezes.
No audio is output.
The operation is not
stable, such as the
output image is
distorted or the
receiver restarts
unintentionally.
・The dongle is not connected to the HDMI input port of a display monitor or projector.
・The AC adapter is disconnected from the wall outlet.
・The USB cable is disconnected from the USB port of the dongle.
・The USB cable is disconnected from the AC adapter.
・If this problem occurred after changing the resolution of the dongle, restore the original
resolution or set the resolution setting to "Auto", or initialize the dongle.
・Display monitor or projector or device to be mirrored does not support HDCP. If any of
them does not support HDCP, image output may not be possible.
・The connected router is in stealth mode. Cancel stealth mode.
・The DHCP of the connected router is dongle or has a static IP address.
Enable DHCP or set the IP setting of the receiver to fixed IP address.
・The subnet mask is not class C. Only class C subnet mask is supported.
・The proxy is set.
・The "Connection" setting in "Administrator settings" is set to "Direct Link Only".
With this setting, the device cannot connect to the network. Change the setting.
・Initialize the receiver.
・Mirroring may not be possible depending on the security settings of the device. Change
the security settings such as temporarily turning off the firewall settings.
・The CPU of the device is not powerful enough. In order to project a screen with a lot of
movement like a movie, compared to a video with little movement like a presentation, a
high-spec device is required.
・The network environment is not good enough. (For example, the wireless strength is
weak.)
Improve the network environment by changing the wireless channel of the WiFi access
point or changing the layout of each device.
・The network environment is not good enough. (For example, the wireless strength is
weak.)
Improve the network environment by changing the wireless channel of the WiFi access
point or changing the layout of each device.
・A monitor or projector that cannot output audio is used.
・The audio volume of the monitor or projector is set to 0 or is set to mute.
・The audio setting of the monitor or projector is not set to HDMI input.
・The audio volume of the device to be mirrored is set to 0, or is set to mute.
・The power is supplied to the receiver from the USB port of a monitor or projector or other
AC adapter than the supplied one.
Be sure to use the supplied AC adapter.
Possible cause/ remedy
22