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Latest Cumulus MX release 3.13.4 (build 3149) - 03 October 2021

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SFTP suddenly no more

From build 3044 the development baton passed to Mark Crossley. Mark has been responsible for all the Builds since. He has made the code available on GitHub. It is Mark's hope that others will join in this development, but at the very least he welcomes your ideas for future developments (see Cumulus MX Development suggestions).

Moderator: mcrossley

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Posts: 1
Joined: Sun 18 Apr 2021 7:56 am
Weather Station: Vantage Pro2
Operating System: windows 10

SFTP suddenly no more

Post by schrapnell »

For months I have been operating a Cumulus MX weather station that uploads data online to a homepage.
The computer with Windows 10 runs permanently and every 2 minutes text files are uploaded to the homepage via SFTP.
Since the day before yesterday nothing works anymore, no data is transferred.
No Windows update has been made, no programme update has been made, no change has been made to the router.
I can connect to the Internet with the computer without any problems.
In the transmission log, the following is listed each time a data transmission is attempted:
As written, NOTHING HAS CHANGED, has been running without problems for months until the day before yesterday.

2021-10-14 05:30:59.368 RealtimeReconnect: Error reconnecting ftp server - An established connection was aborted by the server.
2021-10-14 05:30:59.368 RealtimeReconnect: Realtime ftp attempting to reinitialise the connection 2021-10-14 05:30:59.368 RealtimeSSHLogin: Attempting realtime SFTP connect to host hosting.telekom.de on port 22 2021-10-14 05:30:59.368 RealtimeSSHLogin: Connecting using password authentication 2021-10-14 05:30:59. 545 RealtimeSSHLogin: Error connecting SFTP - An existing connection was closed by the remote host 2021-10-14 05:30:59.545 RealtimeReconnect: Realtime ftp connection failed to connect after reinitialisation 2021-10-14 05:30:59.546 RealtimeReconnect: Sleeping for 20 seconds before trying again...

Filezilla on the same computer with the same login data works without problems

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Posts: 8945
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Buster Lite rPi
Location: Wilmslow, Cheshire, UK

Re: SFTP suddenly no more

Post by mcrossley »

Sounds like they made a change on your SFTP server. I'd contact your hosting company and ask them if they made a change, and if so what?
They have possibly dropped older authentication protocols at a guess.

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