Solved

Can not connect to FTP from inside SMB network

Posted on 2011-03-01
15
479 Views
Last Modified: 2012-08-13
A very annoying problem: I can not connect to FTP server from inside SMB network.
The server is Small Business R2 2003, and I have turned off all firewalls (on DSL modem, provider, and Server).

Here is FileZilla fragment:

Status:      Resolving address of XXX
Status:      Connecting to XXX:21...
Status:      Connection established, waiting for welcome message...
Response:      220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
Response:      220-You are user number 4 of 50 allowed.
Response:      220-Local time is now 13:20. Server port: 21.
Response:      220-This is a private system - No anonymous login
Response:      220-IPv6 connections are also welcome on this server.
Response:      220 You will be disconnected after 15 minutes of inactivity.
Command:      USER XXX
Response:      331 User XXX OK. Password required
Command:      PASS *******
Response:      530 Login authentication failed
Error:      Could not connect to server

And it won't connect with any of the protocols.

Any ideas?
0
Comment
Question by:mrmut
  • 8
  • 6
15 Comments
 
LVL 8

Expert Comment

by:subhashchy
ID: 35006477
filezila log says 530 Login authentication failed, Can you please make sure the username and password once again and try login in from command prompt using same password
0
 
LVL 8

Expert Comment

by:wfcraven12
ID: 35006654
Make sure whatever username you're using, that they have access to the actual folder itself.  So go into Windows Explorer & drill down to the FTP folder.  Go to the properties of that folder & make sure the username you're trying to connect with is listed.
0
 

Author Comment

by:mrmut
ID: 35006676
subhashchy: yes, Ive thought that might be the problem, but the problem is that the credentials are OK. I am testing for two days now.

wfcraven12: I've just tried to connect to the FTP with my computer (outside LAN), and it worked flawlessly over Internet Explorer. There is also a file on the FTP, and it is listed and dled OK.

I also contacted the hosting company, and they tell me it is all OK from their side.
0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 
LVL 8

Expert Comment

by:wfcraven12
ID: 35006761
are you trying to connect to a name (i.e. ftp.company.com) or IP address?
0
 

Author Comment

by:mrmut
ID: 35006893
Tried it, it is the same.
0
 
LVL 8

Expert Comment

by:wfcraven12
ID: 35007323
what do you mean tried it? what is the same?
0
 

Author Comment

by:mrmut
ID: 35007799
Tried it with IP address, hostname, checked credentials, etc.
The response inside the network is always that credentials are not ok, but from external machines it works nicely.
0
 
LVL 8

Expert Comment

by:wfcraven12
ID: 35008660
that's weird.  have you tried using COMPUTERNAME\username for the user while on the internal LAN? It may think you're trying to connect as DOMAIN\username.
0
 

Author Comment

by:mrmut
ID: 35010437
I don't think it is that. I try to connect with Filezila and it doesn't workl either form the server or the PCs.

I am really puzzled here, don't have any idea what to do. It is irritating.
0
 

Author Comment

by:mrmut
ID: 35024883
Bump!

What could I try? Is there a win service that could block FPT? I really don't get it, as in other locations I have not problems like this one.
0
 
LVL 8

Expert Comment

by:wfcraven12
ID: 35027107
Right I understand you're connecting with Filezilla, but did you at least try putting the COMPUTERNAME\username as the login ID?

Have you tried connecting with a different client (i.e. WinSCP)?

Have you tried connecting internally with Windows Explorer?

Please try with a different client as well as Windows.  It'll help eliminate variables.
0
 

Author Comment

by:mrmut
ID: 35027254
Tested it, router does not block FTP, and I have tested FTP server internally - it works.
It seems that the server is the bottlenec, but it seems I can't find it.
Is there a service to check that might block it? - I am pretty sure there is something except firewall (turned off) that might be blocking it.
0
 
LVL 8

Expert Comment

by:wfcraven12
ID: 35027367
A bottleneck wouldn't cause you to get an authentication error.

Have you tried connecting to your FTP server with a different client?

0
 

Accepted Solution

by:
mrmut earned 0 total points
ID: 35028517
Solved the problem by stopping and disabling "Application Layer Gateway" service.
It works flawlessly now.
0
 

Author Closing Comment

by:mrmut
ID: 35067721
This worked. Need to do this on clients and server.
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

by Batuhan Cetin In this article I will be guiding through the process of removing a failed DC metadata from Active Directory (hereafter, AD) using the ntdsutil tool in a Windows Server 2003 environment. These steps are not necessary in a Win…
Many of us need to configure DHCP server(s) in their environment. We can do that simply via DHCP console on server or using MMC snap-in on each computer with Administrative Tools installed in a network. But what if we have to configure many DHCP ser…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question