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4. For the Source of IP address field select Zone. For the Zone field select WAN. The
Check for change IP every field indicates how often the router will check to see if the
WAN IP address has changed. The Check-time unit indicates the unit of time that is
used for the Check for changed IP every field. The Force update every field indicates
when the router will force an update with the DDNS provider. The Force-time unit
indicates the unit of time that is used for the Force update every field. Click Apply.
5. You can add a secondary DDNS profile to the router. In case the first DDNS provider
does not work the secondary profile can act as a backup. To add a secondary profile
simply click Add and fill out the information as you did in steps 2 and 3.