Go to network spoke, switch wired connection OFF and ON. Configuration info is missing. New state NM_DEVICE_STATE_SECONDARIES has been added to NM, we need to ignore it in network spoke when refreshing UI.
anaconda-18.22-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/anaconda-18.22-1.fc18
Package anaconda-18.22-1.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing anaconda-18.22-1.fc18' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-17432/anaconda-18.22-1.fc18 then log in and leave karma (feedback).
anaconda-18.23-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/anaconda-18.23-1.fc18
anaconda-18.24-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/anaconda-18.24-1.fc18
anaconda-18.25-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/anaconda-18.25-1.fc18
anaconda-18.26-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/anaconda-18.26-1.fc18
anaconda-18.28-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/FEDORA-2012-17823/anaconda-18.28-1.fc18
This bug looks to have been fixed for many anaconda builds now but missed being closed. If you find you are still experiencing it with Fedora 18 Beta (RC1) or later, please re-open the bug. (tested, looks fixed in Beta RC1.)