I have successfully used remote desktop for over 4 1/2 months remoting
from work to home and from home to other pc's that I maintain.  Just
recently I have run into a problem that I cannot figure out.  I am
able to establish a connection to my home pc and maintain it sometimes
throughout the night or day, however, if I manage to be disconnected,
or if I disconnect or log off I am not able to log back into my
session.  In fact I am not even able to establish a connection.  This
is what I receive:

Now for all intense and purposes, yes remote connections are enabled,
no the max connections were not exceeded ( I am the only user) and
network issues well, perhaps but then how is the previous 4 1/2
flawless service explained?

I am entirely at a loss here.  I have a firewall, NIS 2003, but it
worked fine in the past.  When I go home and check the desktop
sometimes the computer is locked and other times it is not. According
to my research I should be able to log back into my session, I should
be the only one (besides the admin) who can unlock my session but I
cannot.  And, I can't even log in as the administrator, which I am as
well.  I need help.  Please help.

Thanks.