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Camera
Why the screen is displayed abnormally with strange horizontal lines when the resolution of Panasonic BB-HCM381 camera is set as 640x480?
The monitoring image of the Toshiba IK-WB 21 network camera is upside down. What should I do?
When I use Etrovision cameras, why I cannot connect the cameras from WAN?
What should I do if there is loss of picture when monitoring or playing back video of Dlink DCS 2120?
When I connect the NVR to ACTi video server, ACD-2X00 series and SED-21X0 series, by choosing get video from server and get video from camera, both the NVR can't control the Pan, Tilt and Zoom functions. What should I do to active the PTZ funciton in NVR?
When I connect the NVR to ACTi speed dome, CAM-6500 and CAM-6600 series, by choosing get video from server and get video from camera, both the NVR can't control the Pan, Tilt and Zoom functions. What should I do to active the PTZ funciton in NVR?
I use NVR to connect to eight Sony cameras with MPEG4 compression. However, the frame rate of recordings does not follow my settings and there is audio delay, why?
How to configure the frame rate AXIS P3301 and Q7401 cameras?
How to configure the resolution, frame rate, and quality of Linksys WVC54GCA?
I can manually specify the FTP server address of the camera in alarm settings page; however, the function does not work after entering a domain name. How to solve the problem?
When I enable MxPEG recording of Mobotix cameras on VioStor NVR, I can't use VSMobile to see the live view of cameras. Why?
I've installed Sony cameras behind the router, and the NVR couldn’t detect any motion detection from the cameras. Why?
After adding two VIVOTEK IP-7142 cameras, it will crash on the live view page. Why?
I have a Vivotek camera and set the advanced configuration of motion detection in camera's web UI manually, such as sensitivity and percentage setting. Why the advanced configuration of motion detection does not work?
When I use Mobotix cameras, I can't use motion detection recording. Why?
 
Camera Settings
When I connect a high megapixel camera from CMS live view, why I don't seem to have high megapixel quality?
VioStor NVRs have been certified with ImmerVision Enables. What are VioStor NVR-compatible panomorph cameras?
Set up the QNAP VioStor NVR to record and monitor the VIVOTEK FE8172/72V/71V fisheye network camera
How to enable real-time digital watermarking on NVR? What's the limitation?
When I choose stream from camera on monitoring UI, which cameras whose multi-stream feature are supported?
What resolution does VioGate support?
When I use Messoa cameras and choose wrong model on camera configuration page, the test result is still ok. Why?
What is the bandwidth occupied by VioCard-100?
When I use Sanyo cameras and choose wrong model on camera configuration page, the test result is still ok. Why?
Why the estimated storage space for recording displayed in Recording Settings page is different from the actual value?
When I use AVTECH cameras and choose wrong model on camera configuration page, the test result is still ok. Why?
When I select a camera in camera configuration page and change Panasonic network camera to Canon camera, why there are logs "Set video quality on Camera 1 failed"?
How is the performance of different fps settings differing from the others?
For streaming from camera feature of QNAP NVR, which camera brands and models are supported?
Can I have different bitrate for viewing and different for recording?
I've set the video file length of Vivotek cameras on VioStor NVR as 1 minute and the frame rate as 1 fps. Why the recording files are all 2 minutes long?
If I adjust the fps of each channel as max, can the channels achieve 30 fps?
If the alarm recording of VioStor does not function, what should I do?
After I enable H.264 recording of an AXIS M7001 camera on two NVR servers, when I click test button on camera configuration page, NVR will return "MJPEG Test OK but MPEG-4 Failed when trying RTSP protocol. Why?
Why I cannot received Alert Notification via Email?
Why the motion detection of VIVOTEK cameras on VioStor NVR fail?
How to use ONVIF-compliant cameras on VioStor NVR?
How can I play the recording files of QNAP NVR on Mac OS?
 
Hardware
When I do the "Quick Configuration," why the hard disk initiating progress is stucking?
For VioStor NVR, after formatting USB driver, why the lost and found folders appear?
Is any control device needed to remote control camera?
I've installed the camera but the distant object is unclear. How to solve this problem?
Will VioGate Master 32 support 16 Viocard-300 where only one video channel is used?
Does VioStor support hot swapping?
Why I cannot use my DynaColor camera with VioGate?
Why VioStor takes too long to restart?
How to expand the storage capacity of VioStor-101 and NVR-104 by the eSATA port?
How to use the front video backup button of the VioStor?
 
Monitoring Page
When I connect a high megapixel camera from CMS live view, why I don't seem to have high megapixel quality?
Why the multi-monitor doesn't function?
A colon “:” appears in the NVR name and the firmware version on the monitoring page but I didn’t set the server name as that. Why?
When I enter preset point name in far east languages, it will show scrambled characters. What should I do?
Can a snapshot be saved in different locations at the same time on VioCard and VioGate series?
About ICS-1013, when I monitor the plants outdoor, the green leaves appear to be light purple. Why?
To use multi-ser monitoring feature, I click "Server List" icon, why do you not see the "Auto Detect" button?
Why IE browser cannot display the screen when logging in VioGate-100/120 or VioCard-100?
Why can't the E-map be displayed correctly?
Why the screen is black when I login VioGate?
Why VioCard 30/300 log in screen show
Why PTZ camera cannot work for VioCard/ VioGate?
I use sequential mode to monitor Panasonic BLC111 & BLC131 cameras, why the cameras are disconnected at short intervals?
Why can't the monitoring page be fully displayed in Internet Explorer?
In the monitoring page of VioStor, if I unable to view live video on one of the cameras, what should I do?
How many fps does Max refer to on the monitoring screen?
Why the live video of VioStor is not clear or smooth sometimes?
After I enter a correct user name and password to access the VioStor NVR, if the monitoring screen did not display, what should I do?
What is the difference between stream from the network camera and server?
 
Network
Why I cannot connect VioGate-100/120 or VioCard-100 while I can find them via QNAP Finder?
What are the default network settings of VioGate-100/120 or VioCard-100?
Why the actual monitoring quality is worse than the configuration?
Why can't I use the SMB, FTP and Web File Manager in VioStor?
How to view and change the network settings of PC?
How to determine if two network devices are in the same LAN?
How to evaluate the bandwidth usage of VioGate to avoid network congestion?
I've installed the VioStor behind the router or firewall and set up port mapping (virtual server) on the router. However, I still couldn’t access the VioStor. What should I do?
For some cameras, such as Axis, D-link, GANZ, LevelOne, or Vivotek, I have to configure the RTP ports on the router and the NVR so that the NVR can save the recording data from the IP cameras. What is the corresponding RTP port of VioStor series?
There is a large number of "Re-launch process [upnpd]" logs in the Event Logs. Why?
 
Network Settings
If by all means, the CMS server can't be connected via web broswer, what should I do?
Why I can connect to the CMS server via CMS client, while fail to connect to the CMS server using web browser?
After setting the Network Settings as Standalone, the LAN2 port does not take effect. Why?
Is domain name supported in WAN IP and LAN IP fields?
When I cannot access VioStor via the default IP or the IP shown in Quick Setup Wizard, what should I do?
 
NVR Installation Guide
My VioStor, IP cameras, and the PC are all in the same LAN (Local Area Network). How to install the NVR in different network environment for remote monitoring?
My VioStor, IP cameras, and the PC are all in the same LAN, and some IP cameras are installed in remote location with Public IP. I want to allow users to connect the NVR from remote PC over the Internet. how to install the NVR in different network environment for remote monitoring?
My VioStor, IP cameras, and the PC are all in the same LAN, and I want to allow users to connect the NVR from remote PC over the Internet. How to install the NVR in different network environment for remote monitoring?
My VioStor, IP cameras, and the PC are in LAN A, and some IP cameras are installed in LAN B behind a different router in a remote location. I want to allow the users to connect the NVR from remote PC over the Internet. How to install the NVR in different network environment for remote monitoring?
 
Other
Why the hardware key cannot be found when running VioGate Master after updating it to V1.3.3623?
How long is the transfer distance of coaxial cable in general?
How long is the transfer distance of network cable in general?
After updating my NVR system, I can not use my local language, what can I do?
What is FTP passive mode?
How can I access VioStor NVR?
 
Recording
How to Add Recording Channels?
QNAP surveillance products supports smart recording feature. Which camera models are supported?
When I go to NVR playback page to play the recording files, I found some frames are skipped. How can I playback all the frames?
Why the recording is paused for a while and restarted after I applied changes to VioStor?
Why the screen turns black when playing back the video?
May I change the video signal standard of VioGate-100/120 and VioCard-100 when they are in use?
What format should the files recorded by VioGate be converted to for playing by Windows Media Player?
Why the size of recorded files is different?
In playback mode, why we sometimes could view the playback of one channel but not with another channel at specific time?
If I enable MxPEG recording of MOBOTIX cameras on VioStor NVR, when I playback the recording files, the picture displayed is containing some large gray blocks hiding a large part of the picture. How to solve it?
Are the files recorded by VioGate-100/120 or VioCard-100 saved by file size or time?
How many frames per second do VioGate-100/120 or VioCard-100 record?
In playback mode, QNAP multi-channels playback support up to four channels playback at the same time. However, we found the playback view time of four channels are not synchronized. Why?
Do VioGate-100/120 and VioCard-100 support NTSC and PAL signals?
What is the recording size limitation of VioStor NVR?
When I use Mobotix cameras, the image size doesn't match the resolution setting on NVR. Why?
Can the files of multiple VioGate-100/120 and VioCard-100 be saved to the same NAS simultaneously?
How to convert VioGate-100 video file of IVG ext. to format that can be play by Windows Media Player?
How to calculate the file size of recording by VioGate-100/120 and VioCard-100?
If the recording function of VioStor is not working properly, what should I do?
How to calculate the storage needed for recording by VioGate?
When I use 'convert to AVI file' on playback and the snapshot function in Windows Vista or above, I cannot save the files in the specified folder. Why?
 
System
Why when I finish the Quick Configuration, the UI just stop running?
Why I can't have the updated NVR/camera settings in CMS server after I adjust NVR info?
Why I can’t configure VioGate when entering IP address in storage settings on Windows 98?
In playback page, when I click "web file manager" icon, why the window shows "no access to this file or floder..."?
How to use FTP within Microsoft® Internet Explorer 7®?
When I use Internet Explorer 8 on Windows PC, I find the UI issue on monitoring and playback page. How can I solve it?
When I monitored the image on the NVR for a while, my PC did not respond until I closed the IE browser. Why?
I tried to login NVR by Finder. After entering the user name and password, an error message was shown and the login failed. Why?
How to remove the ActiveX of VioStor manually?
I cannot login the VioStor by Internet Explorer after installing Kaspersky anti-virus software. What should I do?
How to check your firmware Version?
 
System Tools
Why there are only English logs in Event Logs?
Why can't the changes to the system configurations take effect?
Why there are mis-encoded characters in the cvs log file?
Why can't I upgrade the VioStor NVR?
Why all alarm recordings would be removed by overwriting process?
How to use Remote Replication in VioStor NVR?
How to update the VioStor-101/ VioStor-201 series to use the new web multi-channel playback interface?
How to Update Your VioStor (or NVR) System?
 
User Management
Why the user with the administrator authority can’t delete the files on the NVR via FTP?
Why can't I login the administration page of the VioStor?
 
Utility
Why can not use "auto search server" on monitor and playback?
Why can't I find my VioStor in QNAP Finder?
I cannot find the NVR by QNAP Finder. The network connection is normal. What should I do?
 
 
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