JVC VN-H557U Instructions Manual page 91

Videos sent via TCP do not play.
The camera can transmit a maximum of 40 videos
via TCP, and a maximum of 20 Built-in Viewer can
be connected to 1 camera.
If [Priority] of [JPEG Streaming] is set to the
"Framerate" mode, the frame rate requested by
the clients are kept, but the maximum number of
streams is reduced.
The frame rate of displayed videos is low.
N If the Built-in Viewer is in use, check the
Built-in Viewer settings.
If the network has a narrow bandwidth, the frame
rate will be limited.
If [Priority] of [JPEG Streaming] is set to the
"Client Number" mode, 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 is exceeded, images
are distributed at the lower frame rate so that the
upper quantity limit of distribution data is not
exceeded.
The image displayed is not smooth.
The camera image may not appear smooth at
times due to factors such as fluctuations in the
CPU and memory load, or network jitter.
Also, distribution capability may deteriorate
during recording to the SD card, or playback or
video output from the card.
N Lower the [Framesize], [Framerate], and
[Bitrate], and check the image again.
(A p.35 [[Encoding] Page] )
When 3D DNR is used, an afterimage
appears.
When you use 3-dimensional noise reduction, in
principle, an afterimage can appear if you shoot
a moving object, however it is not a camera
malfunction.
I cannot receive an alarm via TCP/UDP.
The port may be blocked by the Windows
Firewall.
N Execute the following operation for the firewall
of the Windows environment on your PC.
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 "port"
in [Rule type].
E In [Protocols and Ports], enter the port
number for "Specific local ports".
F Select "Allow the connection" in [Actions].
G Select applicable conditions in [Profile].
H Register any character string for the "Name"
in [Name].
N For more information on the firewall for the
network you are using or if you are still unable
to resolve the issue with the above operation,
please consult your network administrator or
installation technician.
Characters of the file name registered in the
FTP server are garbled.
N When double-byte characters are to be used
for the file name, make use of an FTP server
for which the character code is EUC-JP.
Files are not saved to the computer when you
pressed the [Capture] button of the Built-in
Viewer, or the [Export] button of the
[Export(Y/M/D-h:m:s)] menu.
N Run the Internet Explorer as an administrator.
You can perform this as follows.
A Right-click Internet Explorer.
B Select [Run as administrator].
Troubleshooting
91