This network employs a technology called captive portal which allows the administrator(s) to restrict network access to trusted users. In order to prevent certificate security warnings when accessing this portal, the network's filtering unit must issue to your computer or mobile device a file called an SSL certificate.
This guide will help you install the SSL filtering certificate for Android-based mobile devices, including the Nexus, Galaxy, Droid, and Evo, as well as several other phones and tablets.
First, click the Download Certificate button below; this will download the certificate file to a temporary location on your device.
You will be prompted to enter a name for the certificate. Enter whatever you like (Cipafilter is recommended), make sure that Credential use is set to VPN and apps, and then tap OK.
(Note: These images show the steps for Chrome running on Android 6.0 on a Nexus 5x; since Android devices vary greatly, you may not see exactly the same thing if you are using another device or a different version of Android; however, the general process and wording should be the same.)
Depending on your device and its configuration, you may be prompted to enter your device PIN. If you don't have a PIN set, you may be prompted to create one.
You will see a confirmation that the certificate has been installed.
You may additionally see a warning indicating that a third party (the filter) is capable of monitoring your device's Web traffic. This message is normal and can be dismissed by pressing the back button.
You're done! You will see a confirmation that the certificate has been installed, and then you may continue browsing as usual; in most cases, you will not notice anything different after the certificate is installed.