I Vision Electronics Co., Ltd
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Possible reason: the signal cable is not connected properly;
Solution: Re-connect the control cable between the PTZ or dome camera and the
network video server.
5.3 It can not play the video normally after the program upgrades
Solution: Close all webpage; seek NetClient.dll, NetViewX.cab, NetViewX.ocx file from
the system directory and delete them, and then use the Internet Explore to connect the
NVS, and the NVS will show the new display plug-in component automatically.
5.4 How to transfer video on the Internet through the NVS
If trying to transfer data on the Internet through the NVS, it should know the network
connection mode firstly. If it is the internet static IP address, it can directly set the IP address of
the NVS, subnet mask and gateway into the static address provided by ISP, and then it can
Internet Explore normally. Additionally, the network that is used widely, i.e.: ADSL and
Residential Broadband, such two connection methods are required to make certification process.
The certification can be finished by using some intelligent devices, such as PC or small router. If
it is in a LAN, it will have a IP address for the Internet, so the external network will have no way
to view the inside of the network; under such circumstances, it needs to make certain setting on
the NVS.
Solution
1) If using for the LAN of office or building, and trying to access to the NVS in another city, it
can use the device that is connected with the Internet to forward, i.e.: it can use the Port
Mapping Method to finish the forward of information package. Some popular port mapping
software will be available for use after making a simple setting, for instance: Portmap,
portunnel. Select all IP among the IP addresses to be accessed to, and then fill the address of
the NVS insider the LAN in the IP address bar at the rear end.
2) If there is no PC and it selects the router as the device for forward, this is also workable.
Most of the routers have the port mapping function, which is called also DMZ. Designate DMZ
address as the address of the NVS.
3) Set a VPN server as the server for a virtual exclusive network, and then dial up at the
remote client terminal; after connecting, it can access to the internal host.
5.5 Why the normal data could not go through the exchanger
Possible reason:
1. If it is a second-tier switch, does it make the address wrong?
2. If it is a three-tier switch, does it make the port and physical address binding?
3. Does it consider the NVS when setting the firewall rule?
Solution:
1) Before finding the network failure, please use Ping command under the command line
mode to connect the address of the other party. After viewing ping, the information returned is
a very important link. If there is no information returned, it means the network is in problem
certainly.
2) If binding IP and Mac address, it will need to make some setting inside the exchanger, i.e.:
add a new binding; that is to say, bind the IP address of the NVS and Mac address.
3) If no NVS is considered when setting firewall rule for the exchanger, it is necessary to allow
the NVS make communications at the port of 3000, 3001, 3002, 3004 and 80. Otherwise all
data package will be filtered and fail to reach.