yum not working in fedora 11
 

installed fresh fedora 11..but the yum is not working ..
whenevern iam trying to use yum like
yum -y install mplayer (for example.) then one line is coming

Loading plugin : refresh packagekit

and nothing is happennig after this....

can anyone tell me what is the problem??

check you have a working internet connection and that you can reach the yum repositories first of all.
stop yum updates for now and kill the hanging process(es)
then try again

as the previous poster mentioned: check the internet connectivity (use firefox e.g. to see if you can reach websites). If that is working, it might be that the mirror Yum is using is not synched with the Fedora servers.
You can change the default mirror, by editing the yum configuration (in /etc)

general note:
Yum is rather slow on first use.. (it needs to create db of the current packages, and seek for a speedy mirror for you)
Better said, in general Yum is slow compared to competitors.

during my fedora 11 period (currently on Slackware) i had the same problem. Eventually it began to speed up more and more.. but it took a while before that happend.