The system-ca-certs problem has been fixed in Linux Mint 17.
What may remain, though, is that the right authentication type such as TTLS or PEAP is not selected automatically. For me PEAP had to be chosen to connect to Eduroam; your institution should be able to tell which of these types you need (since for example Android also asks for this). But that is unrelated to this bug, if you know which type to use you can select it yourself in the network settings.
The system-ca-certs problem has been fixed in Linux Mint 17.
What may remain, though, is that the right authentication type such as TTLS or PEAP is not selected automatically. For me PEAP had to be chosen to connect to Eduroam; your institution should be able to tell which of these types you need (since for example Android also asks for this). But that is unrelated to this bug, if you know which type to use you can select it yourself in the network settings.