FTP "Not Connected"

I am using standard Microsoft FTP client. I could login to my FTP server to "get" or "pull" files. HOwever, when I try to "get" files, sometime I get error message which says "ftp> Not Connected". Then I could not get the file. When I checked, I am still connected to the FTP server. No disconnection with the FTP server.

The problem is intermittent. When I tried again later, it works fine ... until I got that problem again.

DO you have any suggestions on what might have caused the problem?
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eceg777Connect With a Mentor Commented:
Can you please try to do the following:
1. Isolate first if there is a network problem.
 - Try a continuous ping on the FTP site and see if you have a stable network.
 - A trace route will also help to see if you have any congestions on every hops.

2. Should the network be stable enough, any intermittent scenarios that involves MS services can be tried to be corrected by a service restart.

3. Also, it would help if you can try to connect from a different client see if you will have the same problem. Should that be the case, the isolation should be concentrated on the FTP server side.
Does the same problem occur when you use a client like FileZilla? If you haven't tried it yet, please do so and let us know.
Also, in case you do face the problem, I would suggest that you turn the 'Keep-Alive connection' feature of FileZilla.
Further to what has already been written above, I'd try to connect to a different ftp server to see if the problem is duplicated there.  Any of the public ftp servers would do, but as a suggestion try this one:

If you try getting several of the smaller files you can then see if it is software or server related.  I use filezilla as recommended above, but it should be client independant.

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