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Check your connection in Status and Interface settings window.
Use Test Server in Config > Servers.
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The "sc config SABnzbd start=auto" requires a space between the "start=" and the "auto" otherwise the command fails. e.g. it should be "sc config SABnzbd start= auto"
If you miss the space it just shows you the usage instructions, which does tell you that a space is required between the equals sign and the value, but it's not immediately obvious that this is the problem. Can the doco be updated so that people aren't scratching their heads following the instructions?