[Trisquel-users] Error Upgrading Trisquel 5.5 to Trisquel 6.0

[tsduv1994]

I have installed all the updates up to this point. When I open up Update  
Manager and check for updates the "Upgrade" button shows up as expected.  
Actually trying to carry out the update results in an error that reads  
"Authenticating the upgrade failed. There may be a problem with the network  
or with the server." Any ideas?