Are the norton servers down?

Norton on 3 of my computers  indicates last update  1 hour ago.

 

Manually running LiveUpdate on the computer with NIS 2012 succeeds, but the "time since last update" stays at 1 hour.

 

Manually running  LiveUpdate on one of the computers with NIS 2013 indicates no updates  needed.

 

Are the servers  down again?

 

Thanks