Cisco RSS Feeds not working in SharePoint 2013

[c.registration]

Hello,

We are trying to get RSS feeds from Cisco to work with our SharePoint 2013 environment.  The current feeds as follows do not work:

http://tools.cisco.com/security/center/psirtrss10/CiscoSecurityAdvisory.xml
http://tools.cisco.com/security/center/psirtrss20/CiscoSecurityAdvisory.xml

I receive the following error messages when trying to use these feeds:

ProtocolError occurred trying to complete the request. The server returned a status code of : InternalServerError and the status description is : "Internal Server Error"

If I use the older feed, SharePoint has no issues.  The older feed is as follows:

http://www.cisco.com/warp/public/146/news_cisco/data/syndication/rss2/SecurityAdvisories_20.xml#

I also do not have any issues with any other RSS feeds other then with the Cisco feeds.  None of the new feeds work in addition to the ones posted above.  I am using the default RSS feed reader with SharePoint.

Any help would be greatly appreciated.

Thanks.

Jason