JVC VN-C20 ユーザーズマニュアル

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Troubleshooting
Symptom
Causes and Countermeasures
Reference 
Page
● This is 192.168.0.2 in the default settings, and 
the subnet mask is 255.255.255.0.
● When the DHCP client is set to AONB, VN-C20 
will run using the IP address in the default 
settings when it is started up via a LAN in which 
a DHCP server does not exist.
● If it is started up using a computer that is 
configured within the same LAN, you can search 
for the IP address using the search tool.
The web page of VN-C20 
cannot be displayed
Check the Internet Explorer settings.
When a proxy server is in use, configure the proxy 
server settings of the Internet Explorer accordingly.
The built-in viewer cannot be 
installed
Check the Internet Explorer settings.
The built-in viewer consists of a software 
component called ActiveX.
When using the built-in viewer for the first time, the 
ActiveX is supposed to be installed. However, the 
installation may be rejected depends on the setting 
of the AntiVirus software. In such case, change the 
setting of the AntiVirus software, and then install the 
built-in viewer.
Authentication by Verisign 
appears during installation of 
the built-in viewer
Verisign's electronic signature is stored in 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 
upon starting up the built-in 
viewer
The built-in viewer consists of a software 
component called ActiveX.
When using the built-in viewer for the first time, the 
ActiveX is supposed to be installed. However, the 
installation may be rejected depends on the setting 
of the AntiVirus software. In such case, change the 
setting of the AntiVirus software, and then install the 
built-in viewer.
TCP images cannot be 
played back
The maximum number of JPEG images that can be 
sent by VN-C20 via TCP is 5, and up to 5 built-in 
viewers can be connected to each VN-C20 unit.
Make use of multicast to monitor areas beyond the 
above number.
VN-C20 allows multicast transmission of up to 1 
stream.
VN-C20_EN.book  Page 71  Tuesday, February 14, 2006  10:51 AM