Update a Custom Authentication Form
After you upgrade to version 7.4.1 (or later) from an earlier release, you must add the following line to a custom authentication form for users to see a list of domains when they authenticate with captive portal. (This task is always required if you use the HTTP Response Page authentication type; if users authenticate with a realm using another authentication type, this task is optional.)
On the Active Authentication tab page of your identity rule, click Edit (
) and enter the following in the part of the form that requires the user to log in:
<select name="realm" id="realm"></select>