JVC VN-H37U Instructions Manual page 110

Others
Troubleshooting (continued)
Symptom
Multicast images do not play.
The frame rate of displayed
videos is low.
A white zone appears in the
Built-in Viewer.
110
Possible Causes and Actions Taken
● Start manual multicast streaming from the
[Multicast] page of the camera.
● When you receive multicast streaming using the
Built-in Viewer, check to see that multicast address
and port number matches between the [Multicast]
page of camera and the Built-in Viewer settings.
Also, use the multicast streaming on the network
supporting the IGMPv2.
● Multicast streaming may be blocked by the
Windows 7 Firewalls. In that case, you can go
through the firewalls as follows.
A
Select [Start] - [Control Panel] - [System and
Security].
B
Open [Check firewall status] under [Windows
Firewall].
C
Open the [Advanced] menu and select
[Inbound Rules] - [New Rule].
D In [New Inbound Rule Wizard], select AportB
in [Rule type].
E
In [Protocols and Ports], enter the port
number for ASpecific local portsB.
Selects AAllow the connectionB in [Actions].
F
G
Selects applicable conditions in [Profile].
H
Register an arbitrary character string for the
ANameB in [Name].
● When you are using the Built-in Viewer, check
the viewer settings.
● If the network has a narrow bandwidth, the frame
rate will be limited.
● If you set the video distribution setting to AClient
NumberB and if the number of streaming
requests increases, the images are distributed at
a frame rate lower than the preset rate.
● If the distribution capability (A Page 5) is
exceeded, images are distributed at the lower
frame rate so that the upper quantity limit of
distribution data is not exceeded.
● If you set up Internet Explorer as follows, some
Internet Explorer graphics may not appear and will
be left white on some PCs. In such a case, you can
display Internet Explorer graphics normally by
selecting as follows.
If you select [Start] - [Control Panel] - [Appearance
and Personalization] - [Display] - [Make text and
other items larger or smaller] and select "100%
(default)", the normal drawing will start.
Reference
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