Make sure you have the latest software updates available for your version of Mac OS. Click the Apple menu in the upper left hand corner of the desktop and choose About This Mac:
If you need to update, connected to a wired network and click the Software Update button to download the latest version of OS X for your computer.
If you attempt to join the UVM network by simply selecting it from the AirPort menu under Mac OS X 10.4, you will likely experience a generic-sounding error. The following procedure will establish a working, permanent profile for connecting your computer to this network. You must be on-campus and in range of a UVM wireless access point to follow these steps.
Open the Applications folder and launch Internet Connect:
Select "New 802.1X Connection" from Internet Connect's File menu:
Select "Edit Configurations..." from the Configuration menu:
Configure your new connection with these settings:
When prompted to "Verify Certificate", click "Show Certificate":
Highlight the "radius.uvm.edu" line item, if it's not already selected. Note the green checkmark under "radius.uvm.edu" that says "This certificate is valid".
Click "Details" to expand the window:
Scroll to the "Fingerprints" section at the bottom, and verify that the "SHA1" value reads as follows:
D7 70 1A D1 06 BF A5 2C E5 E4 32 EC 68 18 51 57 59 61 DA 64
If it does, check the box near the top labeled "Always trust 'radius.uvm.edu'":
Watch the "Status" messages at the bottom left of the Internet Connect window: within a few seconds, it should show either "Connected via TTLS":
...or "Connected via PEAP (Inner Protocol: MSCHAPv2)":
Note that it may take up to fifteen seconds to establish full network connectivity after the Status message reads, "Connected via...", so you may still receive errors from your web browser or email program. Just try again after a moment.
The next time you reboot or log off/onto your computer, you may be prompted to "Confirm Access to Keychain", and the Mac OS will want permission to use the "UVM" item from your keychain. Click Always Allow:
These instructions were derived from Apple's own.