A firmware update was recently released for the NVR6XX-4KS2 series devices.

Information, instructions, and download links can be found Here

IPCIEConfig

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The video window of control installation displays “ ” when I log in the IPC.

  1. IE permission setting is not correct, add IPC IP as trusted sites.
  2. Set IE “Internet Option > Security > Custom Level > Active X control and plug-in” all enabled. 
  3. You need to log in IPC as an administrator in WIN 7 system for the first time.