530 critical error

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Posts: 1
Joined: 2019-06-06 18:44
First name: TQ
Last name: World

530 critical error

#1 Post by TQWorld » 2019-06-06 19:09

Hi All,

I have run into a unique situation and I am hopeful the community can assist.

One of our clients has set up a FTP site and I have configured FileZilla accordingly:
- Host
- Encryption = explicit FTP over TLS if available
- Logon type = normal
- Creds provided

When I connect, I receive a pop-up telling me the server does not support FTP over TLS and I click OK and i'm in.

Code: Select all

Status:	Connection established, waiting for welcome message...
Status:	Insecure server, it does not support FTP over TLS.
Status:	Logged in
Status:	Retrieving directory listing...
Status:	Directory listing of "/" successful
I'm good to go.

The snag here is that none of my co-workers can connect using the same config. I even exported my config, had them delete theirs and import mine. All of my co-workers are receiving a "530 critical error could not connect to server."

Code: Select all

Status:	Insecure server, it does not support FTP over TLS.
Command:           USER _____________
Response: 331 Password required for ____________.
Command:           PASS **********
Response: 530 Not logged in.
Status:	Critical error: Could not connect to server
These co-workers are throughout the US and in India. We have all tried on and off our company VPN with no change for them or me - I can still connect, they can't.

All of our settings are default, but we went thru them anyway and made sure they matched (EDIT --> SETTINGS). The Advanced, Transfer Settings and Charset options for this connection have not been touched. Everything from a connection and an application standpoint is default. My IP is not white listed with the client nor do they require it.

At this point, I'm pretty stumped. Any insight would be appreciated.

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Re: 530 critical error

#2 Post by botg » 2019-06-07 06:42

Since the server does not support FTP over TLS, a malicious firewall or AV product might have injected fake replies into the connection.

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