Unexpected null reply received

Question

Hello

I have been evaluating this software in consideration of purchasing the 'PRO' edition for a current project I am working on (I NEED SSL capability.) Edtftpnet was working excellently in testing until today, when I tried to FTP a test file to a potential client and received the following error message when beginning an FTP session [code: ftpclient.login(user, password)]:

"Unexpected null reply received".

Any ideas? Is this a sign that the client is behind a firewall/proxy which the 'Pro' edition will handle? Is this an FTP, Proxy, Firewall setting that the client needs to change? Am I doing something wrong? (I have tested it successfully for 4 other clients.)

Also, I am able to successfully connect, 'put', 'get', etc using WS_FTP to the 'problem clients' site.

Any help would be much appreciated.
Thanks
Logic

Answer 1

Email sent.

Thanks for all your help. Hopefully this will resolve the issue. I like how easy edtFTPnet is to use and would like to use it for the project I'm working on.

Thanks again
Logic

Answer 2

Aaahh!

OK, so I received the version 1.1.6 with the included fix. It seems to have successfully fixed the " Unexpected null reply received" error when running the program on my laptop at home.

However, when I deploy the application (C# Console) to our test server, i get the error "Logon Failure: unknown user name or bad password." I have verified the Login and Password several times (resorted to hard coding them into the application). It does this for ALL ftp sites I have tried. Why does the same EXACT code work on my laptop but not on the server? Some type of setting on the Server? Yet I am successfully able to run ftp.exe and WS_FTP on the Server, just as before, with the same output!

Has this software been tested on MS Windows Server 2003? Am I now running into a Proxy/Firewall issue (although the ftp.exe debug output appears the same)? I'm attempting to get the output from edtftpnet on the Server.

Any suggestions?

Still hopeful,
Logic

Answer 3

Is this Demo.java that you are running? If not does Demo.java work on the server?

Are you using the same user for ftp.exe and WS_FTP?

Aaahh!

OK, so I received the version 1.1.6 with the included fix. It seems to have successfully fixed the " Unexpected null reply received" error when running the program on my laptop at home.

However, when I deploy the application (C# Console) to our test server, i get the error "Logon Failure: unknown user name or bad password."

[snip]

Logic

Answer 4

Some more ideas for you.

The only real difference between ftp.exe and edtFTPnet is that the latter is running under the .NET framework.

Perhaps the user account under which you opened the console window does not have permission to access the machine you are trying to FTP to (under .NET?).

If possible try using the local admin account or even the domain admin account to open the command prompt - if this works it is a permissioning problem.

Answer 5

Yes! It was a permission issue (My bad!) Thank you *SO* much for your help. I was able to FTP all clients successfully. The edtftpnet version 1.1.6 fix was the answer. I've encountered no more problems. I'll be running some more tests. Hopefully we'll have no more problems.

I can't believe all the excellent and prompt support I've received from EnterpriseDT. I wish I would find such good service more often! :^)

Thanks again,
Logic

Answer 6

Great news.

This fix will also end up in edtFTPnet/PRO 1.0.3 which will be released in a week or so.

Yes! It was a permission issue (My bad!) Thank you *SO* much for your help. I was able to FTP all clients successfully. The edtftpnet version 1.1.6 fix was the answer. I've encountered no more problems. I'll be running some more tests. Hopefully we'll have no more problems.

I can't believe all the excellent and prompt support I've received from EnterpriseDT. I wish I would find such good service more often! :^)

Thanks again,
Logic