Network Error When Connecting to Rakuten SFTP Server :: Support Forum

sakusekido
Joined:: 2026-10-20
Posts:: 2

Network Error When Connecting to Rakuten SFTP Server

2026-10-20 09:47

Hello,

I am experiencing a network error when trying to connect to Rakuten's SFTP server using WinSCP.

I have confirmed that the hostname, port number, username, and password are all entered correctly. However, I still receive a "Network error" message and cannot establish a connection.

I have already contacted Rakuten's support team regarding this issue, but they were unable to resolve it.

Could you please advise on the possible causes of this error and how to resolve it?

Thank you for your assistance.

screenshot1.png (90.55 KB, Private file)

Description: When I click the "Login" button from the screen shown in the attached image, I receive a "Network error" message.

スクリーンショット 2026-10-20 122646.png (69.57 KB, Private file)

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martin◆ Site Admin
Joined:: 2002-12-10
Posts:: 43,111
Location:: Prague, Czechia

Re: Network Error When Connecting to Rakuten SFTP Server

2026-10-22

Please attach a full session log file showing the problem (using the latest version of WinSCP).

To generate the session log file, enable logging, log in to your server and do the operation and only the operation that causes the error. Submit the log with your post as an attachment. Note that passwords and passphrases not stored in the log. You may want to remove other data you consider sensitive though, such as host names, IP addresses, account names or file names (unless they are relevant to the problem). If you do not want to post the log publicly, you can mark the attachment as private.

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sakusekido
Joined:: 2026-10-20
Posts:: 2

Re: Network Error When Connecting to Rakuten SFTP Server

2026-10-23 02:32

Thank you for your reply.
I have attached the session log showing the error.
I have removed some sensitive information from the log for security reasons.
Could you please review it and advise on how to resolve this issue?
Thank you for your help.

winscp.log (3.35 KB, Private file)

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Network Error When Connecting to Rakuten SFTP Server