If you have a special character such as $, !, @, #, %, etc., you will need to add an escape into the password during registration.
For example:
Your password is:
[email protected]!
Using the registration string, you would make your password look like this:
Sym\@\antec\!\
This should allow the registration to process and connect to Unified Management Console. If this does not resolve the issue, please contact support.