Bug (Fixed) : Network Manager can’t start Fedora15
I’ve upgraded my Laptop to fedora15 from FC14. The current release name was LoveLock. I upgraded them last saturday. However, yesterday I faced an error which network manager can’t start. it has something error “The system network services are not compatible with this version”. However I still manage to connect to network via CLI.

Digging for few hours lead me to the solution. Just Update your package with following updates from fedora :
http://koji.fedoraproject.org/koji/taskinfo?taskID=3100999

here some other way to fix it :
http://juranktech.com/2011/05/31/solve-network-connection-afer-update-daily-fedora-15/
Hi Jurank Dankkal :
Thanks for the addition resources.!!
sama2 bro…