I'm following this guide: https://openwrt.org/docs/guide-user/network/wifi/guestwifi/guest-wlan-webinterface and it isn't really working out.
It starts going wrong at step one. We're instructed to go to the wifi page and click "new" next to the radio that you want your guests to use. There are some slight name changes, for instance my interface says "wireless", not "wifi", but that's superficial. The deeper problem is that the author uses the word "interface" here. So allegedly, when we hit that "new" button on the wifi page, we're creating a new "interface". I followed the directions here, but when I navigated to network/interfaces, the new interface does not appear here.
I pressed on at this point, manually created a new interface using the "add new interface" button at the bottom of the interface page. I used 192.168.2.1 (192.168.1.1 is taken by the private network AP) as the address, set 255.255.255.0 as the mask, setup DHCP using the default options, saved and applied.
Then I navigated BACK to that "interface" (that didn't show up under network/interfaces) that I created at the network/wireless page, edited it, and under "Interface Configuration" was able to select "GuestInterface" as my "network" (I'm not sure that was the right thing to do but I didn't get an error), saved and applied, then navigated BACK to the interfaces page to configure the firewall.
Under network/interfaces/guestInterface/firewall settings, I entered a new zone, called it guestZone, tried to save and apply, it times out after 30s, and gives me the option to dismiss, revert, or force. I chose dismiss.
I'm running stock 18.06, no packages installed, very little customization. What am I doing wrong? Why didn't my new interface show up under interfaces forcing me to manually create a new interface? Why does the operation time out when trying to create a guest zone?
I've chosen 3 names, the bssid is ssidGuest, the interface was guestInterface, the firewall zone was guestZone. Was that a mistake? I thought it would help me keep track of what I was doing better. If I just used the same name, I thought it would cause confusion, but maybe I needed to use the same name for interface and zone or something?
Sorry this is wordy, I'm just trying to include as much relevant information as possible. Thanks.