I want to be able to use WebDav from muliple IPs, partly because my IP is dynamic with frequent changes. When I try to edit the "start IP address" or "End IP address" I get an error message "Failed to update..." It does not say the IP is invalid as it does when I try an IP with too many or too few octets. 

It currently has my current IP in both the start and end fields. How do I make it accept a wider range of IP addresses? Thanks.

Please make sure you entered a valid IP address. If you still receive this error message, please email us the start IP address and end IP address. 

You can more easily click "Unrestrict" to remove any IP address restriction.