In order to protect the performance of the Rackspace Cloud Sites shared platform and to serve a large user base, the maximum number of client connections allowed for a single FTP user is ten (10).
You might have run afoul of this limit if you've seen an error message like:
530 Sorry, the maximum number of clients (10) for this user are already connected.
There are a few steps you can take to make sure you stay within the connection limit:
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