Canon Wi-Fi Adapter W-E1 手册

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页码 98
78
Responding to Error Messages
What to check on the camera
On the camera, IP address is set to [Auto setting]. Is this the 
correct setting?
If no DHCP server is used, configure settings after setting the IP 
address to [Manual setting] on the camera (p.92).
What to check on the DHCP server
Is the power of the DHCP server on?
Turn on the DHCP server.
Are there enough addresses for assignment by the DHCP 
server?
Increase the number of addresses assigned by the DHCP server.
Remove devices assigned addresses by the DHCP server from 
the network to reduce the number of addresses in use.
Is the DHCP server working correctly?
Check the DHCP server settings to make sure it is working 
correctly as a DHCP server.
If applicable, ask your network administrator to ensure the DHCP 
server is available.
21:  No address assigned by DHCP server