Description of problem:

Yum generally, using fastestmirror or not, if the mirror of a repo is down, change to other online.
FedUp actually no change/switch to a good speed and online mirror if the mirror for vmlinuz, the first step is down or is slowly.
The only way is using --instrepo=, because if the mirror of the mirrorlist is slowly (like darsat.com.ar) FedUp exit and show that the X bytes in X time, so is a slow connection, etc.

Version-Release number of selected component (if applicable):
Fedora 18 64 bit, fedup-0.7.3-4.fc18

How reproducible:
Always

Steps to Reproduce:
1.Install a Fedora 18 desktop
2.yum update -y
3.fedup-cli --network 19

Actual results:
If the mirror of the list of mirrorlist, more nearest is slowly or down, fedup exit and no switch to other mirror. The only way for skip this problem is using --instrepo= with the master server of Fedora Project.

Expected results:

Add to FedUp the same feature that yum for change of repo when the repo is slowly or down, and no exit.

Additional info:

Actually my box is using F19 because i used --instrepo=dl.fedora etc.
I know that is very dificult reproduce this bug because is necessary a failed/slowly mirror in the mirrorlist for the country. In my case mirrors.dcarsat.com.ar because i live in Argentina.