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Expected Behaviour:
Address is assigned and confirmation appears in blue dialog at top of screen
Actual Behaviour
Address appears to be assigned, but red dialog appears at top of screen with error: "There was a problem applying your settings. Debugging information: PHP error (2): fopen/etc/dnsmasq.d/04-pihole-static-dhcp.conf): failed to open stream: No such file or directory in /var/www/html/admin/scripts/pi-hole/php/savesettings.php:66"