Blackmagic ATEM 4 M/E Constellation IP troubleshooting

Common ATEM 4 M/E Constellation IP errors & problems

What techs run into most, and what's usually behind it. The step-by-step fix for your exact unit is in Ask Roadie.

• 2022-7 redundancy is configured but a single network path failure still glitches the show

  Likely cause: ST 2022-7 Seamless Protection Switching sends two identical copies and compares incoming RTP packets by sequence number, reconstructing the frame from whichever packet arrives first.

  Step-by-step fixGet the fix →

• 2160p59.94 or 2160p60 will not pass as SMPTE-2110 video

  Likely cause: Uncompressed 2160p at 59.94/60 exceeds what the port allocation carries as plain 2110-20, so Blackmagic provides the IP10 lightweight codec for those rates.

  Step-by-step fixGet the fix →

• A 2110 input is black or missing even though the sender is confirmed running

  Likely cause: 2110 carries video, audio and ancillary as independent RTP flows with their own multicast groups, so a partial subscription produces a partial signal rather than a clean failure.

  Step-by-step fixGet the fix →

• Cannot find the switcher on the network, or need to set/change its IP address

  Likely cause: The switcher has four distinct network roles on separate connectors (100G media, 10G control/NMOS, PTP reference, 1G management).

  Step-by-step fixGet the fix →

• Firmware / software update process and the current version to ship on

  Likely cause: ATEM releases bundle switcher firmware and control software together, so the panel and the frame expect the same feature set.

  Step-by-step fixGet the fix →

• Need local monitoring or confidence video at the rack in an all-IP plant

  Likely cause: An all-IP frame has no BNC to loop off, so local eyes normally need a converter.

  Step-by-step fixGet the fix →

• Off-standard, mis-timed or mixed-format source glitching on input - do we need an external frame sync?

  Likely cause: Per-input conversion and resynchronisation is a hardware feature of the Constellation IP line, not a mode you enable.

  Step-by-step fixGet the fix →

• Pre-show health check - how to catch a failing fan, hot QSFP or dead network leg before doors

  Likely cause: The utility exposes hardware telemetry that the front panel does not summarise.

  Step-by-step fixGet the fix →

• PTP will not lock, or adding one new device makes the whole 2110 network resynchronise

  Likely cause: PTP replaces tri-level/black burst in a 2110 plant and is hierarchical (grandmaster, boundary clocks in switches, clients).

  Step-by-step fixGet the fix →

• Spec and capability baseline for ATEM 4 M/E Constellation IP (what the box actually is before you troubleshoot it)

  Likely cause: Most field calls on this box are actually "is this even possible on this model" questions.

  Step-by-step fixGet the fix →

• Streams cross-talking, appearing on the wrong receiver, or disappearing after adding devices

  Likely cause: Multicast is one-to-many by address, so the address IS the routing.

  Step-by-step fixGet the fix →

• Switcher sources and destinations do not appear in the broadcast controller / cannot be routed

  Likely cause: IS-04 is how the device advertises itself and its flows; IS-05 is how a controller actually makes the connection.

  Step-by-step fixGet the fix →

Not on the list? Describe it your way, or paste the error code off the display. Ask Roadie works the problem with you until it's fixed or you have a clear next move.

More Blackmagic gear

Other video & projection gear