Failed to read binary data! (ProtocolError)

[Valerian-Marchioni]

Hi,

I'm having issues to connect to a new SFTP server. I initially had the following error message when trying to connect using v.2.0.2: New-SFTPSession : Failed to negociate key exchange algorithm.

I then upgraded to v3.0.6 and installed .net 4.8 and i now have a different error message and still unbale to connect: New-SFTPSession : The connection was closed by the server: Failed to read binary packet data! (ProtocolError).

I'm able to connect with Putty's psftp tool.

Any idea what could be wrong?

Thank you very much.

Regards, Val

[darkoperator]

What is running the target server? Version of OpenSSH and OSSent from my iPhoneOn Sep 19, 2022, at 9:15 AM, Valerian-Marchioni @.***> wrote: Hi, I'm having issues to connect to a new SFTP server. I initially had the following error message when trying to connect using v.2.0.2: New-SFTPSession : Failed to negociate key exchange algorithm. I then upgraded to v3.0.6 and installed .net 4.8 and i now have a different error message and still unbale to connect: New-SFTPSession : The connection was closed by the server: Failed to read binary packet data! (ProtocolError). I'm able to connect with Putty's psftp tool. Any idea what could be wrong? Thank you very much. Regards, Val

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[Valerian-Marchioni]

I don't know, we don't own that server. Is there a way for me to find it out using other tools?

[Valerian-Marchioni]

This is what i get when i run psftp in verbose mode. I hope this helps:

[MVKozlov]

@Valerian-Marchioni, try to use ssh-keyscan -H hostname against this server. It shows ssh server version

[Valerian-Marchioni]

@MVKozlov Here is what it shows:

[MVKozlov]

Seems there is some incompatibility between ssh.net library and GoAnywhere like this https://github.com/iterate-ch/cyberduck/issues/12733

I'm afraid that nothing can be done with this module.

[Valerian-Marchioni]

@MVKozlov Thanks for your reply. I'll use another library for this particular server then. I just got it working with the winscp library hopefully.

[darkoperator]

Will try to download their trial and replicate. It will take a while since I live in Puerto Rico and we got hot by a hurricane and Im without power Sent from my iPhoneOn Sep 19, 2022, at 10:14 AM, Valerian-Marchioni @.***> wrote: This is what i get when i run psftp in verbose mode. I hope this helps:

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[Valerian-Marchioni]

Hi Carlos,

Thank you. It’s not urgent for me anymore as I rewrote my script to use a different library. Good luck with the hurricane.

Regards, Val

Marchioni Valerian Sr IT Specialist

Afton Chemical SPRL Rue de Scoufflény, 50, 7191 Ecaussinnes-Lalaing,Belgium

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Will try to download their trial and replicate. It will take a while since I live in Puerto Rico and we got hot by a hurricane and Im without power Sent from my iPhoneOn Sep 19, 2022, at 10:14 AM, Valerian-Marchioni @.***> wrote: This is what i get when i run psftp in verbose mode. I hope this helps:

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