You will need to reach out to the administrators about how you can work around this issue.  When SmithMicro owned the rights to the program, they provided a solution that has been removed a long time ago.  IIRC, you can be offline for about a week before Poser starts to complain about connectivity but it might be longer.  Several threads, like yours, have been started and are buried somewhere within the long list of posts in the forum.