This is a test post. Does it allow me to post anything?

Quote from Connection FAQ:

If neither of these options apply to you, then there is a possibility that you are simply cut off from the computer due to a fluke in the Internet. If this is the case, then contact your Internet Service Provider (ISP) and let them know that there is a problem with contacting certain computers on the Internet. If they do not help you, you should seriously consider switching ISP's.