Response: 559 ftp://example.domain Not allowed to browse Miscellaneous or Unknown category

[rluech]

Within a company network and over a proxy script I connect to an external FTP Server using FileZilla. This works fine from the personal company laptop but not from the company server.

FileZilla reports on the server:

Status: Connecting to mpg-ftp.ch through FTP proxy
Status: Resolving address of [proxy script]
Status: Connecting to [ip-address:port]...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Command: USER [username]
Response: 331 Password required
Command: PASS ********************
Response: 559 ftp://[host] Not allowed to browse Miscellaneous or Unknown category, (company: [companyname], 10/29/2020:16:30:49)
Error: Critical error: Could not connect to server

FileZilla reports on the personal company laptop:

Status: Verbinde mit [host] über FTP-Proxy
Status: Auflösen der IP-Adresse für [proxy script]
Status: Verbinde mit [ip-address:port]...
Status: Verbindung hergestellt, warte auf Willkommensnachricht...
Status: Unsicherer Server; er unterstützt kein FTP über TLS.
Status: Angemeldet
Status: Empfange Verzeichnisinhalt...
Status: Anzeigen des Verzeichnisinhalts für "/" abgeschlossen

Of course I double checked that I use the exact same parameters.
Can anyone give my a explanation or hint what could be the problem and how to solve it.
Thanks in advance for any help!

Rafael

[boco]

Looks like some company policy preventing access. You need to ask the IT administrator.