Probably you have already solved the problem, but I want to know you my opinion.
1) this problem in my case happened because I changed the credential of the local service Data protector Inet. After some days I changed the password and all It became right.
2) HP Data protector is a very complex software anc there are very few people who know it HP include.
Open a case in HP means to write a lot of e-mails and e-mails and often without solution.
Attilio Marchi
Italy