Topics Map > University of Chicago > IT Services > Phones & Internet Connections > Wireless Data Networking
Topics Map > University of Chicago > IT Services > Phones & Internet Connections > Wireless
Wireless - Common Certificate Errors on MacOS
This article provides examples of common certificate errors on MacOS devices when the network certificate is updated.
The two most common certificate change related errors that you can expect to see on MacOS laptops are listed below. Depending on how the user setup their secure connection the result will be vary.
- User is not able to connect to the secure wireless network and gets this error message Authentication failed on network “uchicago-secure”. This is the normal behavior when users have an XpressConnect profile installed.
To workaround this error, you must remove the old XpressConnect profile and manually setup your connection (see instructions below).
- The machine tried to connect, but the connection failed and you get the error message The Wi-Fi network “uchicago-secure” could not be joined. This is normal when the machine is not using XpressConnect profiles and your initial authentication for the day has failed because of the certificate change
The workaround for this condition is to try to connect to the secure network a second time. If that fails you will have to remove your settings for "uchicago-secure" or eduroam, and manually setup the connection from scratch. Once you are successfully connected you may still want to install the updated XpressConnect profile that includes the updated CA certificate chain.
Manual Setup of"uchicago-secure" or eduroam Connection
- Select the uchicago-secure or eduroam network from the list of wireless networks.
- Provide your CNetID account details or your eduroam credentials and make sure to tick the box for "Remember this connection". If you don't check the box, your machine will not save the connection and you will need to log in every time you roam.
- Click Join to complete the setup.
Removing Old XpressConnect Profiles
- Click on the apple icon on the top left hand corner of the desktop. Then select System Preferences... from the drop- down menu.
- In the system preferences window, look for the Profiles icon. Open it to access the installed user profiles.
- Search for the profile called Switch to the New Wireless Networks.... Select it from the list and click the minus sign button (-) to remove it from the list.
- To acknowledge the remove action, click Remove.
- A prompt appears to enter your local admin account to remove any settings configured by the old XpressConnect profile.