Hi
It has passed more than a year after last reply to this post but because this problem still exists (at least for me!) I'm going to share a workaround I found:
1-Go To SETUP>IMAGE>REMOTE DEVICE
2*-Disconnect all IPCams from device's POE and wait till all of them vanish from the list. (if they don't, press REFRESH button)
3-Click on "MANUAL ADD" button.
4**-Starting from IP:10.1.1.65 PORT:37777 add as much as devices that your NVR accepts (Increase last number of IP by one for each new device you add).
5-Connect your cameras and they will take place in places you previously defined and there will be no free channels available for device to automatically add the attached devices (and therefore there won't be any duplicated devices).
6-Now if you enable "IPC Offline Ararm" for any of cameras, it would work perfectly because you have defined camera profiles manually and because they are "MANUAL PROFILES" they won't disappear once you disconnect the camera.
NOTES:
*-If you do not disconnect all cameras first, you won't be able to add -for example- 8 manual profiles for 8channel NVR! Because you need all manual profiles and device wont let you add more than max number of channels based on your device model and some of them are already taken by profiles automatically added because of connected cameras. So disconnect them all first.
**-you must manually add as much device as possible because if you don't, NVR will create a duplicated new profile for that camera and by adding all possible profiles manually you prevent this automatic action. It means if your NVR is 4ch you should create manually 4 profiles, if 32 you should create 32 profiles. Otherwise you will have two profiles for each camera you connect. One manual and one automatic.
Finally thanks to "SHDES" because his/her findings acted as foundation for this solution.
If you find this solution useful let us know and make us happy.
Good luck
