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Symptom
Cannot access from the web
browser.
Cannot access the unit via the
Internet.
Cause/solution
•
Is "554" selected for the HTTP port number?
For the HTTP port number, select a port number other
than the following port numbers used by the unit. The
number used by the unit: 20, 21, 23, 25, 42, 53, 67, 68,
69, 110, 123, 161, 162, 443, 554, 995, 10669, 10670,
52000, 59000 - 61000
•
Is the same IP address provided to other devices?
Are there contradictions between the address and the
network subnet to be accessed?
When the unit and the PC are connected in the
same subnet:
Are the IP addresses of the unit and the PC set in a
common subnet? Or is "Use Proxy Server" for the
settings of the web browser checked?
When accessing the unit in the same subnet, it is
recommended to enter the address of the unit in the
"Don't Use Proxy For These Addresses" box.
When the unit and the PC are connected in the
different subnet:
Is the IP address of the default gateway set for the unit
correct?
•
Is the name currently used to access the unit different
from the name registered for the "Viewnetcam.com"
service?
Access the unit again with the registered name.
•
Did you access "http://" while using the HTTPS
function?
To use the HTTPS function, access "https://". It is also
necessary to enter the port number.
•
Are the network settings of the unit correct?
Set the default gateway or DNS server address
correctly. To use the DDNS service, check that the
settings are correct.
•
Is the setting for "Default gateway" on the "Network"
page configured? Or is the setting correct?
When communicating using IPv4:
Configure the setting for "Default gateway" of "IPv4
network" on the [Network] tab of the setup menu.
20 Troubleshooting
Reference
pages
69
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93
81
66
Operating Instructions
123
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