User manual
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Appendix C: Troubleshooting 
This appendix provides useful information to help you to resolve any difficulty you might have 
with your Pro Series Network Camera. Fault symptoms, possible causes and remedial actions 
are provided within a quick reference table.   
PINGing Your IP address   
By sending a packet to the specified address and waiting for a reply, the PING (packet Internet 
grouper) can determine whether a specific IP address is accessible. It also provides a 
particularly useful method for confirming addressing conflicts with your Pro Series Network 
Camera on the network. 
After disconnecting your camera, follow the instructions below in association with Symptoms, 
Possible Causes and Remedial Actions and run the PING utility to troubleshoot TCP/IP 
problems on your network.   
1. Start a DOS window   
2. Type ping x.x.x.x, where x.x.x.x is the IP address of the camera.   
3. The subsequent replies will provide an explanation as to the cause of the problem. Replies 
can be interpreted as defined in the table below:   
PING reply  Interpretation and recommendation 
bytes = 32 time = 2 ms 
The IP address is already used and cannot be used again.   
You must obtain a new IP address.   
Destination host unreachable 
MPEG4 Network Camera is not accessible within your subnet. 
You must obtain a new IP address.   
Request timed out 
This IP address is not used by anyone and is available for use 
with your Pro Series Network Camera.   
Symptoms, Possible Causes and Remedial Actions   
Symptoms Possible causes Remedial actions 
The IP address is   
already used by   
another device 
1. Disconnect your camera from the network.   
2. Run the PING utility (as described in "PINGing Your IP   
Address"). 
The IP address is   
located within a   
different subnet 
Run the PING utility (as described in "PINGing Your IP   
Address"). If the utility returns "no response" or similar, the   
diagnosis is probably correct — you should then proceed as 
follows: 
In Windows 95/98 or Windows 2000/XP/Vista, check that the 
IP address for your camera is within the same subnet as 
your workstation:   
1. Click "Start," "Settings," "Control Panel" and "Network."   
2. Specify the TCP/IP adapter and click on "Properties." In   
Properties, click "IP address."   
3. Check that the first 3 numbers within the IP address of   
your camera match the first 3 of your workstation. If not,   
your camera may be on a different subnet and the IP   
address cannot be set from this workstation. You must set   
the IP address for the camera from a workstation on the   
same subnet.   
The camera   
cannot be   
accessed 
from a Web 
browser 
Other networking   
problems 
Trying replacing your network cable.   
Test the network interface of the product by connecting a   
local computer to the unit, using a standard crossover   
(hub-to-hub) cable.   










