By the help server, I refer to the server that receives and distributes the help that is in Paratext.
(While holding down the Shift key, select the Help menu, point to Advanced, and select Update Help. Enter help upload password. When the server is down, a message appears saying the update failed and that the problem may be due to a firewall blocking port 1433. I just tried this and the server is down - as indicated by the message.)