Can not visit NVS via Digital Survillance Central Management Software ?

    Possible Reason： Network is not through
    Solution： Connect your PC to network directly,,checking whether it works normally or not. Exclude faulty of cable first,faulty network caused by computer virus until it is expedite with the command of Ping.

    Possible Reason： IP Address has been occupied by other devices
    Solution： Stop the connection between NVS and Network, hook up NVS to the PC directly, reinstall IP Address according to the proper operations recommended.

    Possible Reason：IP Address is not in the local network.
    Solution： Check IP Address , Subnet Mask address of the NVS and the setting of Gateway.

    Possible Reason： There is a collision between the MAC and NVS.
    Solution：Change MAC of the NVS.

    Possible Reason： Unknown
    Solution： Press RESET to retrieve default, then connect it again, the defaul IP Address is 192.168.55.160,subnet masking is 255.255.255.0

PTZ, lens out of control ?

    Possible Reason：Signal wire is not connected correctly
    Solution： Reconnect the PTZ or dome to Server.

    Possible Reason： Installation of relevant decoder protocol , address or baud rate is not correct.
    Solution：Check the installation is right or wrong carefully.

Can not hear sound when surveillance ?

    Possible Reason： No audio input connection
    Solution： Check the audio connection

Can’t play Audio&Video normally after upgrade ?

    Solution：Close all the web pages, find and delete the two files HHNetClient.dll NetViewX.cab NetViewX.ocx from the C:\ directory. Reconnect to NVS via Browser.

Can’t browse images normally when use Windows98 OS?

    Solution：Install DirecteX8.0 Edition or higher level Edition.Upgrade IE Edition,IE6.0 is strongly recommended

Having finished upgrade there is error in visiting NVS ?

    Solution：Delete buffer Memory .As follows:Open IE, click Tool → Internet → Delete all of the files, pitch on “Delete all off-line contents”,then click Enter, login NVS again.