Troubleshooting (continued) – JVC VN-685U User Manual
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Symptom
Causes and Countermeasures
Reference
Page
Authentication by VeriSign
appears during installation of
Built-in Viewer
VeriSign’s electronic signature is stored in Built-in Viewer.
For computers with a network environment that is connected
to the Internet, the authenticity of the Built-in Viewer can be
verified via authentication by VeriSign.
^
Multicast images cannot be
played back
● Start multicast transmission manually from the
[Streaming] page of the camera.
● In the case of multicast reception at Built-in Viewer, check
that the multicast address and port number of Built-in
Viewer settings coincide with those on the [Streaming]
page of the camera.
Make use of a network that supports IGMP v2 for
multicast transmission.
● Data may be blocked by the Windows firewall. When this
occurs, perform the following to allow it to pass through.
Windows XP:
Double-click [Windows Firewall] under [Start]
-[Control
Panel], click the [Add Port...] button under the Exception
tab, and register the port number to be allowed through
the firewall in the Port Number field. Enter an arbitrary
character string in the name field.
Windows XP:
Double-click [Allow a program through Windows Firewall.]
under [Start]
-[Control Panel]-[Windows Firewall], click
the [Add Port...] button under the Exception tab, and
register the port number to be allowed through the firewall
in the Port Number field. Enter an arbitrary character
string in the name field.
The frame rate of the
displayed image is low
● Check Built-in Viewer settings when a Built-in Viewer is in
use.
● Frame rate will be constrained when the network
bandwidth is narrow.
A white zone appears in Built-
in Viewer
For some computers, a part of the Internet Explorer graphics
may not appear and is left white when the following setting is
performed on the Internet Explorer.
If [Right-click on the Desktop screen]
-[Properties]-
[Settings]
-[Advanced]-[Advanced]-[DPI setting] is set to
ALarge sizeB or ACustom sizeB, select ANormal size(96DPI)B
to resume normal drawing.
^
A warning message appears
upon starting up Built-in
Viewer
Built-in Viewer consists of a software component
called ActiveX.
The ActiveX is usually installed when 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
Built-in Viewer.
^