It could be a timing problem. After all, you're at home and at work at different times. Maybe the server really isn't available when you try it.
I can't try it here and now, because I don't have a logon code there.

But it could also be their server is blocked somehow by your home computer(s). Could be the hosts file, a popup blocker or any other Internet security software you're running.

One would have to study the javascript source to see where the message comes from (either your own browser or a server on their side) and if it contains any server name you can investigate further.

Did you already try their customer support? They might be able to help.
And you can try another browser (Firefox in stead of IE); I don't expect much success of such a move, but it won't harm to try.

Good luck,


Kees