yum not accessing repository when running F12-on-XO1

[Mikus Grinbergs]

Running on XO-1 with build soas-2-beta (booted from USB stick).

For several days now, 'yum' is timing  out with the message: "Error: 
Cannot retrieve repository metadata (repmod.xml) for repository: 
fedora. Please verify its path and try again."

Is the Fedora-12 repository having serious downtime problems, or is 
this something wrong with yum ?  [I experience no problem with 'yum' 
accessing the Fedora-11 repository when running F11-on-XO1 builds.]

mikus