What has changed is our proxy server.
This is where I would look. If you're sending FTP, you need to open arbitrary local ports to send to the client and I suspect your proxy isn't forwarding the connection. If not, maybe it's a some kind of keep-alive bug with Net::FTP, but I doubt it.

In reply to Re: Net::FTP timeout - Command channel issue by Anonymous Monk
in thread Net::FTP timeout - Command channel issue by zekeb

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