The most common is that the NNTP News Server address in your communications settings is not the proper server machine. E.g., ftp.ksc.nasa.gov is a valid machine but is not a news server, it should be news.ksc.nasa.gov. Change it to the correct machine name. If it's the correct name, try connecting in a few hours. Your news server may have suspended connections for a time to do some maintenance.
[from Greg Monroe]
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