When your user name and/or password are not correct the lock symbol is displayed.

on Thursday January 26 by Super User
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When you are configuring NetcamViewer Monitor from a somewhat slower device then it is possible that these pages are slow to load. To speed this up you can disable the animations and progress bar in the settings.

on Thursday January 26 by Super User
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  • If your question is not in the FAQ, then you can send us a message via email. In 'message' enter a description of you problem with as much detail as possible.
  • Send debug data: by default, several configuration settings are included with this message, which will help us to solve your problem. If you prefer not to send this information then you can turn that off.
  • Send: After clicking the send button your default email application is opened to send your message and configuration settings via email.mations and progress bar in the settings.
on Thursday January 26 by Super User
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  • When it is not possible to establish a connection with the camera then this will be indicated in the top half of the camera tile instead of a still image from the camera.
  • When the autorisation credentials are not correct then this will be indicated in the top half of the camera tile instead of a still image from the camera.
  • Make sure that the settings for the camera are correct. In particular check the details such as IP address, port and the selected brand of camera.
on Thursday January 26 by Super User
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Change HDMI mode via API:

Standard the communication between the TV or monitor and the NetcamViewer Monitor takes place via the HDMI cable.

If the automatic settings are not correct it is possible to change them via the API HDMI mode.



The default state of the NetcamViewer Monitor is set to group 0: auto detect. The groups (if group 1 or 2 is specified) must be used together with the appropriate mode.

The most common group is 1 (CEA).

The most common resolutions are 1080p and 720p, both on 60Hz.

This results in the following common API commands:

http://[IPADRESS]/commands/set-hdmi/1-16 (1080p)

http://[IPADRESS]/commands/set-hdmi/1-4 (for 720p)

Afterwards the NetcamViewer Monitor will restart.

A complete list of groups and modes you will find at the end of this article.

Other HDMI API commands:

Information about the connected monitor or TV can be retrieved with the command below (if there is no multi view displayed)


Use the modes 'preferred' or 'native'.

Reset settings to automatically hdmi:


Tip: PAL countries were historically 50Hz and NTSC countries 60Hz. However all newer HDMI tvs standard will be 60Hz.

HDMI groups and modi:

0 Auto-detect from EDID

Modi Group1 (CEA)

1 VGA (640x480)
2 480p 60Hz
3 480p 60Hz 16:9 aspect ratio
4 720p 60Hz
5 1080i 60Hz
6 480i 60Hz
7 480i 60Hz 16:9 aspect ratio
8 240p 60Hz
9 240p 60Hz 16:9 aspect ratio
10 480i 60Hz pixel quadrupling
11 480i 60Hz pixel quadrupling, 16:9 aspect ratio
12 240p 60Hz pixel quadrupling
13 240p 60Hz pixel quadrupling, 16:9 aspect ratio
14 480p 60Hz pixel doubling
15 480p 60Hz pixel doubling, 16:9 aspect ratio
16 1080p 60Hz
17 576p 50Hz
18 576p 50Hz 16:9 aspect ratio
19 720p 50Hz
20 1080i 50Hz
21 576i 50Hz
22 576i 50Hz 16:9 aspect ratio
23 288p 50Hz
24 288p 50Hz 16:9 aspect ratio
25 576i 50Hz pixel quadrupling
26 576i 50Hz pixel quadrupling, 16:9 aspect ratio
27 288p 50Hz pixel quadrupling
28 288p 50Hz pixel quadrupling, 16:9 aspect ratio
29 576p 50Hz pixel doubling
30 576p 50Hz pixel doubling, 16:9 aspect ratio
31 1080p 50Hz
32 1080p 24Hz
33 1080p 25Hz
34 1080p 30Hz
35 480p 60Hz pixel quadrupling
36 480p 60Hz pixel quadrupling, 16:9 aspect ratio
37 576p 50Hz pixel quadrupling
38 576p 50Hz pixel quadrupling, 16:9 aspect ratio
39 1080i 50Hz reduced blanking
40 1080i 100Hz
41 720p 100Hz
42 576p 100Hz
43 576p 100Hz 16:9 aspect ratio
44 576i 100Hz
45 576i 100Hz 16:9 aspect ratio
46 1080i 120Hz
47 720p 120Hz
48 480p 120Hz
49 480p 120Hz 16:9 aspect ratio
50 480i 120Hz
51 480i 120Hz 16:9 aspect ratio
52 576p 200Hz
53 576p 200Hz 16:9 aspect ratio
54 576i 200Hz
55 576i 200Hz 16:9 aspect ratio
56 480p 240Hz
57 480p 240Hz 16:9 aspect ratio
58 480i 240Hz
59 480i 240Hz 16:9 aspect ratio

Modi Group 2 (DMT)

1 640x350 85Hz
2 640x400 85Hz
3 720x400 85Hz
4 640x480 60Hz
5 640x480 72Hz
6 640x480 75Hz
7 640x480 85Hz
8 800x600 56Hz
9 800x600 60Hz
10 800x600 72Hz
11 800x600 75Hz
12 800x600 85Hz
13 800x600 120Hz
14 848x480 60Hz
15 1024x768 43Hz incompatible with the Raspberry Pi
16 1024x768 60Hz
17 1024x768 70Hz
18 1024x768 75Hz
19 1024x768 85Hz
20 1024x768 120Hz
21 1152x864 75Hz
22 1280x768 reduced blanking
23 1280x768 60Hz
24 1280x768 75Hz
25 1280x768 85Hz
26 1280x768 120Hz reduced blanking
27 1280x800 reduced blanking
28 1280x800 60Hz
29 1280x800 75Hz
30 1280x800 85Hz
31 1280x800 120Hz reduced blanking
32 1280x960 60Hz
33 1280x960 85Hz
34 1280x960 120Hz reduced blanking
35 1280x1024 60Hz
36 1280x1024 75Hz
37 1280x1024 85Hz
38 1280x1024 120Hz reduced blanking
39 1360x768 60Hz
40 1360x768 120Hz reduced blanking
41 1400x1050 reduced blanking
42 1400x1050 60Hz
43 1400x1050 75Hz
44 1400x1050 85Hz
45 1400x1050 120Hz reduced blanking
46 1440x900 reduced blanking
47 1440x900 60Hz
48 1440x900 75Hz
49 1440x900 85Hz
50 1440x900 120Hz reduced blanking
51 1600x1200 60Hz
52 1600x1200 65Hz
53 1600x1200 70Hz
54 1600x1200 75Hz
55 1600x1200 85Hz
56 1600x1200 120Hz reduced blanking
57 1680x1050 reduced blanking
58 1680x1050 60Hz
59 1680x1050 75Hz
60 1680x1050 85Hz
61 1680x1050 120Hz reduced blanking
62 1792x1344 60Hz
63 1792x1344 75Hz
64 1792x1344 120Hz reduced blanking
65 1856x1392 60Hz
66 1856x1392 75Hz
67 1856x1392 120Hz reduced blanking
68 1920x1200 reduced blanking
69 1920x1200 60Hz
70 1920x1200 75Hz
71 1920x1200 85Hz
72 1920x1200 120Hz reduced blanking
73 1920x1440 60Hz
74 1920x1440 75Hz
75 1920x1440 120Hz reduced blanking
76 2560x1600 reduced blanking
77 2560x1600 60Hz
78 2560x1600 75Hz
79 2560x1600 85Hz
80 2560x1600 120Hz reduced blanking
81 1366x768 60Hz
82 1920x1080 60Hz 1080p
83 1600x900 reduced blanking
84 2048x1152 reduced blanking
85 1280x720 60Hz 720p
86 1366x768 reduced blanking
on Thursday January 26 by Super User
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This can be cause by a number of things, please check the following settings to resolve this issue.

1. Confirm that your maximum camera resolution is not set above the maximum of 1920 x 1080p

2. Confirm that you are using the correct camera login credentials in the NCV-monitor and that the user has administrator rights in the camera.

3. Confirm the set streaming codec is set to either MJPEG or H.264.

4. Check the camera manufacturers website for the correct http/rtsp ports.

5. If using the advanced method of adding a camera make sure to look up the correct way to create a RTSP link for your specific camera model and brand.

on Wednesday January 05 by Super User
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