I noticed this morning that none of our Treepl sites where accessible with my FTP Client (Transmit).
As always the Treepl Ninja A.K.A @alex.n, was on it straight away.
Treepl has disabled legacy TLS 1.0 and 1.1 last week, and older FTP software doesn’t support TLS 1.2 by default.
In Transmit I had the possibility to go to “Preferences” -> “Advanced” -> “Advanced Server Settings” and tick “Use TLS c1.2 encryption” on, and now everything is good!
Just a quick info if anybody had the same problem