designfx22 on "[Plugin: CGC Maintenance Mode] IPv6 Addresses Not Working"

I love this plugin! Unfortunately, when I have maintenance mode tued on and try to add an IPv6 address to bypass maintenance mode, it doesn't seem to work. The person with the IPv6 address still gets redirected to the maintenance mode page. Any help would be appreciated. I already checked and the folks with the IPv6 addresses are not behind any firewalls or proxy servers.

https://wordpress.org/plugins/cgc-maintenance-mode/