Instruction manual

Instruction manual 93
8.3 Devices
8.3.1 IP Camera settings
There is one parameter on the IP camera configuration that is not compatible with Nethunter.
On the Video settings section, keep the parameter Profile to the default value “Simple Profile” in order to have
the system working correctly.
If this setting has an incorrect value, the video live, playback and also the recorded video will show reverse jumps
during a normal viewing. Just changing this parameter will solve this erratically effect.
8.3.2 IP camera network configuration
In some cases, it is required that your network topology allows PING between Nethunter NVVR and the cameras.
Otherwise the cameras will be shown as not connected in Monitor tab.
Check that the IP cameras are perfectly accessible from the NVVR through the http(s) port and the specific
camera ports for streaming.
8.4 Backups
8.4.1 Database backups between different NH versions
Database backups between different Nethunter release versions might not work. If an older database
backup has to be restored into a newer release version, try todo it in the usual way (from “Restore database” on
NHServer). If you face any problem, try the following safer way :
1. Uninstall newer Nethunter version deleting the database (in case it is installed).
2. Install the Nethunter version corresponding to the old database backup.
3. Import the old database backup by double-clicking on the sever icon and selecting the option “Restore
backup”
4. Uninstall Nethunter without deleting the database.
5. Install the newer Nethunter version
Let's see an example: we have v.2.2 installed on our system and we would like to restore the database from a
Nethunter v2.0. We must follow the following steps:
1. Uninstall Nethunter v2.2 deleting the database. If you have important data on it, create a backup
previously.
2. Install Nethunter v2.0
3. Import the database backup from v2.0 by double-clicking on the server icon and selecting the option
“Restore backup”
4. Uninstall Nethunter v2.0 without deleting the database.
5. Install Nethunter v2.2.
8.5 Performance under high CPU consumption conditions
Any PC on the network shouldn’t have high cpu usage (around 95-100%). If the client is having it, pictures will be
discarded and end-users will notice poor response time for any action. On the NVVR-side, recordings might fail.
On the server-side, pictures and real-time events will be discarded. In the worst case, even memory leaks might
appear.
WARNING
These steps work only between any versions starting with the same figure. In other words, we can only import any previous 1.x version from any
1.y version and between any previous 2.x version from any 2.y version (where x and y are different).