Online Backup Says I'm Offline When I'm Not

 When I tried to calculate the next backup by Norton Online Backup it said my computer was offline, even though it is actually online.  The icon shows a blue arrow, which is supposed to mean that the backup is in progress.  I tried to connect with the online chat, but the system apparently got stuck in "installing support software."   Any suggestions?  Thanks.

 When I tried to calculate the next backup by Norton Online Backup it said my computer was offline, even though it is actually online.  The icon shows a blue arrow, which is supposed to mean that the backup is in progress.  I tried to connect with the online chat, but the system apparently got stuck in "installing support software."   Any suggestions?  Thanks.

Thanks for the suggestions.  The problem resolved itself when I turned off the computer and turned it back on again for the second or third time.  Part of the Norton Online Backup must not have loaded properly.  I did check Internet Explorer, and "Wofk Offline" was not enabled.