To connect from MacOS X 10.8 and higher with one of the wireless UM networks.
(UMnet for employees, eduroam for students) follow the instructions on this page.
Click on the AirPort icon in the Mac's menu bar
If that icon is not visible, go to your System Preferences (in Apple menu) select Network - Wi-Fi and check 'Show Wi-Fi status in menu bar'
Select one of the UM's wireless network names in the AirPort menu
In the dialog that appears, login with your UM account credentials