[Cyberduck-trac] [Cyberduck] #8078: connection failed with CD V4.x and Sophos UTM

[Cyberduck]

#8078: connection failed with CD V4.x and Sophos UTM
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    Reporter:  Feuerpferd11  |      Owner:  dkocher
        Type:  defect        |     Status:  new
    Priority:  normal        |  Milestone:
   Component:  ftp           |    Version:  4.0
    Severity:  normal        |   Keywords:  Sophos UTM firewall
Architecture:  Intel         |   Platform:
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 Hi,

 some of our customers uses Cyberduck to transfer files up to our ftp-
 server. It worked well all the time since we installed a Sophos UTM. Now
 all the cusomers, which use Cyberduck V4.x can't connect to our server any
 more. They recive a time-out-error. All customers which use Cyberduck V3.x
 are still able to connect to our ftp-server and to transfer files.

 What has changed, so that Cyberduck V4.x can't connect through a Sophos
 UTM, what Cyberduck V3.x is able to do?

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Ticket URL: <https://trac.cyberduck.io/ticket/8078>
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