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Description of problem: When there is a network interruptions that prevents a dhcp lease renewal, NM marks the connection unavailable/down and fails to retry later after external network problem has been resolved. This leaves EVERY dhcp client in a network offline until there is a physical intervention. Version-Release number of selected component (if applicable): This appears to happen in all/most releases with NM (we are running F10, F14, F15 and F16) How reproducible: Everytime there is a dhcp outage longer than the lease renewal period. Steps to Reproduce: 1. Startup a dhcp client system connected to an ethernet switch with connectivity to the dhcp server. 2. disable the dhcp server access, but keep the ethernet connection to the switch stable. 3. wait for the dhcp lease to expire Actual results: the network connection will become disabled, and will not automatically resume after the dhcp server is available. Expected results: the dhcp client system will poll for the dhcp server periodically, and re-enable the network connection within a reasonably short time after the network outage is resolved. Additional info: This can AND DOES bring down every server and client in a facility requiring manual intervention to restart the network connections on every machine. power cycling every ethernet switch in the building, will take the ethernet link down, and back up, and will restore service ... or it requires manually disabling the ethernet port from the console and re-enabling it. this is not acceptable ... and leads to manually assigning static IP addresses for every server and client as a work-around.
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Fedora 16 changed to end-of-life (EOL) status on 2013-02-12. Fedora 16 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.