The following is posted more for information than anything else.
I am running NSBU (Norton Security Premium) on a Win 7 (64 bit) desktop using IE11 as my default browser and have both an Online and a Local Vault on this system.
Yesterday we lost power unexpectantly for about an hour while this system was running. After power returned, I fired it back up and everything was OK until I attempted to log into my Online Vault. I entered the Vault password (as I was already logged into my Norton Account and I got the response, "Validating Vault Password" - which lasted for about a minute and then told me it had timed out and to check my internet connection - which was fine.
I then checked my Local Vault - no problems, work just fine.
Went to https://identitysafe.norton.com/, signed in with my Norton Account, entered my Online Vault password and it opened and I could get to the sites OK.
I then went to my Vista (32 bit) Laptop using IE9 as my default browser and which also has both an Online and a Local Vault. I was already logged into my Norton Account, so I attempted to log into my Online Vault. No problem getting logged in or using the Vault. Now this is the same Vault I could not get into on my desktop, but could get into via the ID Safe link.