pfSense

https://forum.netgate.com/topic/155549/captive-portal-settings-not-saved:
I did more tests, tried to add several captive portal zones, it seems that when I use "VIP" as zone name, it will shows as the capture, i.e. zone name and interface info columns show nothing. When I use other names as zone name, for example "abc" or "test", it will display well.

If mouse is moving over the edit or delete icon of the blank one (the screen capture in last post, VIP zone), I can see the link shows as:

https://192.168.1.1/services_captiveportal.php?zone=vip
https://192.168.1.1/services_captiveportal_zones.php?act=del&zone=vip

If I click "edit", it shows the zone is not enabled (but I did enable it before), I enable it (again), finish the settings in the configuration page, then Save. It is still the same, then I click "edit", it shows the zone is not enabled...

I also checked captive portal config files created via SSH, the zone config file named "vip" does exisit here.

ls l /var/etc/nginx*
rw-r--r- 1 root wheel 2592 Jul 25 09:20 /var/etc/nginx-abc-CaptivePortal-SSL.conf
rw-r--r- 1 root wheel 2099 Jul 25 09:20 /var/etc/nginx-abc-CaptivePortal.conf
rw-r--r- 1 root wheel 2596 Jul 25 09:12 /var/etc/nginx-test-CaptivePortal-SSL.conf
rw-r--r- 1 root wheel 2101 Jul 25 09:12 /var/etc/nginx-test-CaptivePortal.conf
rw-r--r- 1 root wheel 2450 Jul 25 09:13 /var/etc/nginx-vip-CaptivePortal-SSL.conf
rw-r--r- 1 root wheel 1957 Jul 25 09:13 /var/etc/nginx-vip-CaptivePortal.conf
rw-r--r- 1 root wheel 2365 Jul 24 21:48 /var/etc/nginx-webConfigurator.conf

I got the php logs every minute:

Jul 26 18:12:57 php-cgi rc.prunecaptiveportal: vip is not a valid zone in the configuration!