Problem

Possible Causes

Corrective Actions

1080p video is intermittent.

The display device is not configured properly.

Configure the display device properly. Refer to the display device documentation for proper configuration to support 1080p video.

A Crestron HDMI cable is not being used.

Use a Crestron HDMI cable only.

The Crestron HDMI cable exceeds the maximum length of 20 ft (6.1 m).

Use a Crestron HDMI cable that does not exceed 20 ft (6.1 m).

The HDMI or Ethernet cable connections are faulty.

Verify that all cables are connected securely.

The video is not being displayed, but the audio can be heard.

The HDCP settings of one or more DM NVX devices in the signal path do not support the HDCP level of the source.

Ensure that the HDCP settings of all DM NVX devices in the signal path support the HDCP level of the source.

The display does not support the HDCP level of the source.

Ensure that the display supports the HDCP level of the source.

(Applicable to encoder only) A message indicating that the resolution is unsupported appears on the display.

The incorrect EDID is selected for the HDMI input.

Select the correct EDID.

The resolution of the HDMI input is not supported.

The video is not being displayed and audio cannot be heard.

Cable connections are faulty.

Verify that all cables are connected securely.

The incorrect EDID is selected for the HDMI input.

Select the EDID supported by the devices in the signal path.

The HDCP settings of one or more DM NVX devices in the signal path do not support the HDCP level of the source.

Ensure that the HDCP settings of all DM NVX devices in the signal path support the HDCP level of the source.

Video from a 4K60 4:4:4 encoder (for example, a DM-NVX-36x or DM-NVX-E30) is not being displayed.

An incompatible stream type is set on the 4K60 4:4:4 encoder.

Ensure that the stream type is set to E10/E20 on the 4K60 4:4:4 encoder.

The resolution of the video source connected to the 4K60 4:4:4 encoder is not supported by the DM-NVX-D10 decoder.

Change the resolution of the video source to 1080p or lower.

The analog audio output is not functioning.

The audio is multichannel on the encoder, which does not downmix a 2-channel signal from a multichannel surround sound source.

Switch the audio input to 2-channel audio.

The video flickers or drops when the DM NVX device is touched or when the metal in the vicinity of the device is touched.

The DM NVX device is not grounded properly.

Properly ground the DM NVX device.

The DM NVX device indicates that the stream has started, but the video is not being displayed.

Neither IGMPv2 nor IGMPv3 is enabled in the IGMP snooping configuration.

Ensure that IGMPv2 or IGMPv3 is enabled on the network switch.

Video is flickering or video is not displayed when multiple DM NVX devices connect to a network switch.

Neither IGMPv2 nor IGMPv3 snooping is enabled in the network switch for the associated port or VLAN.

Enable IGMPv2 or IGMPv3 snooping in the correct VLAN.

Video is flickering when multiple DM NVX encoders connect to a network switch.

The IGMP filter is not set to drop an unknown multicast IP address.

The IGMP filter is not set to drop an unknown multicast IP address.

A DM NVX multicast stream stopped.

The multicast address is not set properly on the DM NVX device.

Ensure that the multicast address is not a duplicate of a multicast address that is set on another DM NVX device. Use a valid multicast address on the DM NVX device.

DM NVX streaming video is not seen in the decoder.

The DM NVX decoder is not configured with the correct streaming URL and multicast IP address.

Configure the DM NVX decoder using the correct streaming URL and multicast IP address.

The video stops suddenly, and the IGMP reports disappear in the network switch.

The IGMP querier is not configured correctly.

Configure the IGMP querier correctly. The recommended setting is the default setting of the network switch.