Centos yum repo not available

Hello,

It seems I cannot install or update any packages for Centos 6.5 because the repo site is down. Here is the error I get:

Downloading Packages:
http://olcentgbl.trafficmanager.net/centos/6/updates/x86_64/Packages/autofs-5.0.5-89.el6_5.2.x86_64.rpm: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'olcentgbl.trafficmanager.net'"
Trying other mirror.

Any ideas why the site is down, or what alternative mirror I should use? I tried mirror.centos.org, but that had some errors during installation.

Thanks,

David