HIKVISION DS-3WF01C-2N/O User Manual page 19

 If the new IP address is in the same network segment as that of the old one, refresh the page
and use the new IP address to log in to the web UI for configuration.
 If the new IP address is in different network segment from that of the old one, set the IP
address of your management computer to an unused one which should be in the same
network segment as that of the new IP address of the wireless bridge. Then use the new IP
address of the wireless bridge to log in to the web UI for configuration.
DS-3WF01C-2N/O User Guide
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