eduroam emptying /etc/ssl/certs

[BrummieJim]

Hi,
I'm using eduroam (uk universities cross campus wireless network), but my password was elapsed. I've changed the password, and confirmed it works normally, but still can't log in even though none of the other settings have changed. I've been told it might be a cached certificate problem, in which case I was thinking of emptying /etc/ssl/certs as I can't find a probably target in there. Is this safe?

cheers!