I'm not able to connect to the repositories. This just started recently and it's happening to me both at home (FC4) and at work (FC5). I spent a great deal of time at home researching options and trying to update repository files all to no avail. Since it happened to both machines at once I'm wondering if there was a conflict that was created in some automatic update (I have the auto up dater on for both machines.) via terminal: [root@w200356244 ~]# yum list firefox Loading "installonlyn" plugin Setting up repositories livna [1/6] flash [2/6] jpackage-generic [3/6] core [4/6] Cannot find a valid baseurl for repo: core Error: Cannot find a valid baseurl for repo: core [root@w200356244 ~]# via extender: Mirrordetection : default Yum Version : 2.6.1 (/usr/share/yum-cli) Loading "installonlyn" plugin Cannot find a valid baseurl for repo: core Cannot find a valid baseurl for repo: extras Cannot find a valid baseurl for repo: updates Using default mirror detection Using default mirror detection Using default mirror detection Cannot find a valid baseurl for repo: core How can I get connected to the repositories? Thanks in advance for any assistance. Joelle