Others

Troubleshooting

Symptom

Causes and Countermeasures

Reference

Page

 

 

 

 

 

IP address of VN-V25U/26U

DHCP is AEnableB in default settings. IP address

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is unknown

will be provided from DHCP server.

 

 

If there is no DHCP server, VN-V25U/26Uwill

 

 

start using default IP address, 192.168.0.2, and

 

 

default subnet mask, 255.255.255.0.

 

 

Search tool in attached CD-ROM is available to

 

 

find VN-V25U/26Ufrom a PC in the same LAN.

 

 

 

 

The web page of VN-V25U/

Check the Internet Explorer settings.

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26U cannot be displayed

When a proxy server is in use, configure the proxy

 

 

server settings of the Internet Explorer accordingly.

 

 

 

 

The built-in viewer cannot be

Check the Internet Explorer settings.

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installed

The built-in viewer consists of a software

 

 

component called ActiveX.

 

 

The ActiveX is usually installed when the built-in

 

 

viewer is used for the first time. However, installation

 

 

may be rejected depending on the Anti-virus

 

 

software settings. In this case, change the settings of

 

 

the Anti-virus software before installing the built-in

 

 

viewer.

 

 

 

 

Authentication by Verisign

Verisign’s electronic signature is stored in the built-

appears during installation of

in viewer.

 

the built-in viewer

For computers with a network environment that is

 

 

connected to the Internet, the authenticity of the

 

 

viewer can be verified via authentication by

 

 

Verisign.

 

 

 

 

A warning message appears

The built-in viewer consists of a software

upon starting up the built-in

component called ActiveX.

 

viewer

The ActiveX is usually installed when the built-in

 

 

viewer is used for the first time. However, installation

 

 

may be rejected depending on the Anti-virus

 

 

software settings. In this case, change the settings of

 

 

the Anti-virus software before installing the built-in

 

 

viewer.

 

 

 

 

TCP images cannot be

The maximum number of images that can be sent by

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played back

VN-V25U/26Uvia TCP is 20, and up to 20 built-in

 

 

viewers can be connected to each VN-V25U/26U

 

 

unit.

 

 

Make use of multicast for monitoring when the

 

 

number of areas exceeds the above number.

 

 

VN-V25U/26Uallows multicast transmission of

 

 

JPEG and MPEG4 one stream at a time.

 

 

 

 

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