I just want to add for those trying 'random' certificates - if your school can't/won't supply you the proper certificate there is little point trying random other certificates - they WON'T WORK.
That's the whole point of certificates in the first place, to verify the authenticity of the session. If it worked with random other certificates, there wouldn't be a whole lot of point would there.
Removing the system-ca-certs line and restarting network-manager worked for me, pending finding out how to get my schools certificate.
I just want to add for those trying 'random' certificates - if your school can't/won't supply you the proper certificate there is little point trying random other certificates - they WON'T WORK.
That's the whole point of certificates in the first place, to verify the authenticity of the session. If it worked with random other certificates, there wouldn't be a whole lot of point would there.
Removing the system-ca-certs line and restarting network-manager worked for me, pending finding out how to get my schools certificate.