• Admintool requests a password.
• How can I reset the Admintool password?
• How can I reset the Line user-administrator password?
• How can I do a factory reset?
• The observation post does not connect to the NVR that is visible in Admintool.
• The NVR does not recognise the hard drive.
• How can I copy files from the HDD to the Ext4 file system in Windows?
• The IP camera does not display locally in the NVR interface, but it is visible on the client PC.
• Can the recorder provide an RTSP stream?
• Which ports does the NVR use?
• When viewing the archive from several cameras locally at the same time, the “Did not record” message appears. When viewing one camera, the archive plays.
• Can the NVR be used as a client workstation?
• I can’t connect to the NVR by domain name.
• How can I change the IP camera video stream settings?
• Artifacts on the IP camera image.
• Recording to a network resource does not work.
• Recording to the network resource stops after a while.
• How can I upgrade the NVR firmware?

A separate password is used for the Admintool function that is independent from the Line user password. The default password is ‘admin’, which can only be changed through Admintool: Settings -> Change password…

A: Follow these steps:

1. Disconnect all HDDs from the NVR.
2. Create a password-reset.txt file in the root directory of any drive.
3. Write the first five symbols of the NVR MAC address (you can find it through Admintool) in the created file, for example ef:4d.
4. Only connect this drive and restart the device by turning off the power.

A: Possible options:

1. Complete reset of all the device’s settings (Factory reset).
2. Export settings (Settings – Export), send them to technical support and import the received settings with the reset administrator password.

A: To perform a full factory reset of all the Line NVR settings, including all Line settings:

1. Download factory-reset.zip;
2. Extract the files to any folder on your computer.;
3. Run factory-reset.bat;
4. Enter the device’s IP address and administrator password (“admin” by default);
5. Wait until the operation is complete and the device has automatically rebooted.

A: Possible reasons:

1. 1. The NVR is in a different subnetwork.
      Solution: change the device’s IP address through Admintool or the IP address of the computer running the Observation post.
   2. An IP address filter that restricts connection to the NVR was previously set.

Possible solutions:

1. • change your computer’s address to one in the list;
   • reset the NVR to factory settings;
   • export settings (Settings -> Export), send them to technical support, then import the received settings with the reset IP address filter.

A: Possible reasons:

1. The hard drive is used in a different recorder.
   Solution: format the hard drive using Admintool: Support -> Format HDD. ‘admin’ is the default password. If Admintool 0.9.1 or higher does not recognise the hard drive, format it using a computer. Formatting will erase all data.
2. Dynamic disk.
   Solution: The NVR does not work with dynamic disks; either convert the dynamic disk to a basic disk or format it with the appropriate settings. Formatting will erase all data.
3. The SATA cable is damaged.
   Solution: replace the cable.
4. The HDD is not working.
   Solution: test the HDD on a computer and replace it if necessary.

A: To copy records from the hard drive to the Ext4 file system, install the ext2fsd driver. You can download the latest driver version from http://www.ext2fsd.com/. Then find the drive and assign it a letter – there are several ways of doing this:

1. Press F10.
2. Right click on the drive and select Change drive letter.
3. Top menu Tools -> Mountpoint Management.

We recommend using the HDD in read only mode, you should not record to the drive (move files) because of the peculiarities of the Ext4 system.

A: A possible reason is the use of video stream in MPEG4 compressed format. To work with the NVR the IP camera must be reconfigured for H.264 or MJPEG compression.

A: Starting from firmware v20180702, the NVR can give each channel a separate RTSP URL.

Examples of stream URLs:
rtsp://login:@192.168.0.123:9784/cameras/0/streaming/main
rtsp://login:password@192.168.0.123:9784/cameras/15/streaming/sub

More information can be found in Specifications.

A: The default ports are:

1. 9780 – Observation Post and View Archive apps.
2. 9786 – Android, iOS mobile clients and the web interface.
3. 9784 – RTSP .

You can change ports in the NVR administration.

A: When viewing the archive from several cameras at the same time, the archive is played in the second stream. When switching to single camera display, the NVR plays the first stream archive skipping empty fragments when recording for detection.

Possible reasons:

1. Continuous recording mode is set for the main stream or for detection for the second stream.
2. The settings for the additional stream include the “not recording” mode.

A: The NVR can take video and audio streams from the Line servers / recorders and display an image on connected monitors. Up to 32 cameras can be connected. The source archive will not be available, but the device can record its archive if there is a directory for recording and corresponding settings.

A: Possible reasons:

1. The NVR does not have internet access.
   Solution: check that the NVR is connected to the network. If the connection is protected by a firewall, make sure that the NVR has permission to access the internet.
2. Incorrect NVR network settings.
   Solution: if the recorder’s IP address is configured manually (static), make sure that the DNS and Gateway settings are shown (in most cases they match the router’s IP address).
3. The NVR has incorrect date/time settings.
   Synchronise the time with a computer using the Admintool app.

A: To get the most stable video streams, the NVR is connected to the IP camera in ‘View only’ mode; therefore, all stream settings must be made through the camera’s web interface once during initial system configuration.

A: First, make sure that the settings for the IP camera connection to the Line channel use the TCP option. Secondly, check that the bitrate settings shown on the camera do not exceed the standard values for the used resolution (1.3 MP – about 2 Mbit, 2 MP – about 4 Mbit, 3 MP – about 6 Mbit). The total bitrate for the device must not exceed 64 Mbit/s.

A: First, make sure that the device has the latest firmware version. If possible, check if the network resource can be accessed from another computer in the same local network as the NVR. During configuration, there are several requirements for the specified parameters:

1. The resource address must have an IP address, for example, \192.168.1.2line_archive instead of \Office-PCline_archive, as the device does not support NetBIOS names used by Windows.
2. The full path to the network resource must already exist when configuring.

A: If the network resource is located on a computer running Microsoft Windows, you should make the following changes to the registry:

1. set “HKLMSYSTEMCurrentControlSetControlSession ManagerMemory ManagementLargeSystemCache” parameter to “1”;
2. set “HKLMSYSTEMCurrentControlSetServicesLanmanServerParametersSize” parameter to “3”;
3. add “HKLMSYSTEMCurrentControlSetServicesLanmanServerParametersIRPStackSize” parameter with the type REG_DWORD and value “0f(15)”.

You can make these changes using the windows-share.reg file. After making changes to the registry you must restart the computer.

A: Complete the following steps to upgrade the NVR firmware:

1. Download the Admintool app and the firmware file from https://www.devline.net/nvr/32/files/.
2. Run the Admintool app (admintool-X.X.X.exe) and select the required Devline NVR
3. Click Support − Update firmware and select the path to the downloaded firmware file (line-nvr32-vXXXXXXXX). To confirm, enter the Admintool password, which is ‘admin’ by default.

The firmware will be automatically upgraded and the device will be restarted. Save settings and licence information. You can also save settings by clicking Settings − Backup Line Settings…