Skip to main content

Improving Latency on Long-Running SRT Streams to Play STBs

If you notice that the latency on SRT streams sent to Haivision Play 2000/4000 STBs increases over time, you may enable a PCR locking feature.


This feature may not work for all SRT streams. Therefore, test the option before rolling it out to your production environment.

To enable this feature:

  1. SSH into HMP and elevate to root access.
  2. Issue the following command:

    set_config calypso.system_settings.enablePCRLockForSRTPlaybackOnSTBs true
  3. Restart the docker processes for the change to take affect:

  4. After the restart completes, toggle the Settings screen on the affected STBs by pressing the

    button on the remote twice to restart the streams.

To disable this feature, issue the command using false instead of true, and repeat steps 3 and 4:

set_config calypso.system_settings.enablePCRLockForSRTPlaybackOnSTBs false
JavaScript errors detected

Please note, these errors can depend on your browser setup.

If this problem persists, please contact our support.