
Responding to Error Messages
Is the DHCP server working correctly?
XCheck the DHCP server settings to make sure it is working correctly as a DHCP server.
XIf applicable, ask your network administrator to ensure the DHCP server is available.
Responding to Error Messages 21 - 23
Also check the following points when responding to errors numbered 21 - 23.
Are the camera and the access point set to use the same encryption key for authentication?
XThis error occurs if the encryption keys do not match when the authentication method for encryption is set to [Open system]. The setting is
22:No response from DNS server
What to check on the camera
On the camera, does the DNS server’s IP address setting match the server’s actual address?
XConfigure the IP address on the camera to match the actual DNS server address (p.59, 64, 70, 109, 113, 118, 166).
What to check on the DNS server
Is the DNS server on?
XTurn the DNS server on.
Are the DNS server settings for IP addresses and the corresponding names correct?
XOn the DNS server, make sure IP addresses and the corresponding names are entered correctly.
Is the DNS server working correctly?
XCheck the DNS server settings to make sure the server is working correctly as a DNS server.
XIf applicable, ask your network administrator to ensure that the DNS server is available.
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