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Symptom Causes and Countermeasures
Reference
Page
Multicast images cannot be
played back
●
Start multicast transmission manually from the
[Streaming] page of VN-V686WPU.
●
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 VN-V686WPU.
Make use of a network that supports IGMP v2 for
multicast transmission.
●
Multicast may be blocked by the WindowsXP
firewall. When this occurs, perform the following to
allow it to pass through.
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.
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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.
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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.
^
VN-V686WPU_EN.book Page 115 Friday, February 8, 2008 5:20 PM