NVRs and DVRs have hard limits on concurrent playback streams. If other users, mobile apps like DMSS, or integrated video management systems (VMS) are accessing the same stream channel, the NVR rejects new requests with an exclusive resource block.
: If the error mentions "exclusive" or suggests a rights issue, ensure the user account has playback permissions enabled. Log in as an administrator on the NVR/DVR. Navigate to Accounts/Users and edit the relevant profile. NVRs and DVRs have hard limits on concurrent
Press on your keyboard and open the Task Manager . Log in as an administrator on the NVR/DVR
tab, ensure the camera channel experiencing the error is enabled for playback. Network Instability or Timeout tab, ensure the camera channel experiencing the error
If you can play back video by double‑clicking an event from this list, you have a confirmed workaround. This allows you to continue viewing your recordings immediately while you work toward a permanent fix.
Save the changes, log out of SmartPSS, and log back in to refresh the token cache. 4. Adjust Stream Type Preferences