Guest WiFi Access

Double click the downloaded file, a popup will appear, click Open

Now you need to accept the certificate for use with various services. Please click on Next.

Select Place all certificates in the following store and click Browse. In the box that pops up choose Trusted Root Certification Authorities and click OK. Then click on Next.

Click on Finish.

Confirm installation of the certificate

Click the Downloaded file, Keychain Access will open

You will be prompted for a Keychain to add the certificate to and you should select System keychain. You may then be prompted for a username and password. If your account is an administrator account, then enter your own login password. If you are not logged in as an administrator, then enter the administrator's username and password.

The computer may ask which keychain you would like to save the certificate to. Select 'System' If you are unable to login as an administrator you may add the certificate to the Login keychain. This will only enable it for the currently logged in user account.

After downloading the certificate, a screen showing Install Profile will appear.

Click Install, then enter your passcode (if you have one), click Install again

Click Done.

Turn on SSL trust for that certificate. Go to Settings > General > About > Certificate Trust Settings. Under "Enable full trust for root certificates," turn on trust for the certificate.