The wireless networks at McMaster University use a server-side certificate to secure communications between your device and the wireless infrastructure. University Technology Services (UTS) will be updating this certificate for all Wi-Fi networks on January 24, 2019. Certificates must be renewed every two years to maintain optimal function.

Some devices may require you to acknowledge the new certificate change to continue using Wi-Fi connectivity. If a dialog prompts you to verify that the server certificate information is authentic, select “Trust” or “Connect” to complete the wireless connection. This ensures that you are not connecting to a “rogue network” pretending to be a McMaster University wireless network. If this dialog box does not appear, or for any other problems afterward, you may need to “forget” the wireless network profile and setup the connection following the guides. See: https://www.mcmaster.ca/uts/network/wireless/cert_update.htm.

McMaster authorized Wi-Fi networks that will use the new certificate are:

Mac-WiFi (preferred network)
MacSecure (legacy network)
Resnet-WiFi (Student Residence)
Eduroam (for visitors to McMaster)
Mohawk-WiFi (IAHS Mohawk Students only)
For further questions and support, please see https://www.mcmaster.ca/uts/ or contact uts@mcmaster.ca.