claude-code - 💡(How to fix) Fix **Bug: SSH connection to cPanel server broken after April 15 2026 update** [3 comments, 2 participants]

SSH remote connection was working perfectly before the April 15 2026 update. After the update, connections silently fail with "Connection failed" and no error message or diagnostic information shown in the UI. 2. SSH key authentication silently fails — even with a valid RSA PEM format private key (no passphrase), the connection fails with no error. The exact same key connects successfully from PowerShell (ssh -i key user@host works immediately). 4. Connection fails silently — "Connection failed" with no error details SSH connection should succeed as it did before the update, or at minimum show a useful error message.

Error Messages/Logs

TL;DR

The most likely fix is to investigate and resolve the SSH key authentication issue in the Claude Code desktop app, potentially by re-adding the password authentication option or fixing the silent failure with SSH key authentication.

Guidance

• Verify that the SSH key is correctly formatted and being read by the Claude Code app, as the same key works from PowerShell.
• Check the Claude Code app's configuration and settings to see if there are any changes or updates related to SSH key authentication that may be causing the issue.
• Test the connection with a different SSH key or authentication method, if possible, to isolate the issue.
• Consider reaching out to the Claude Code support team or developers to report the issue and request assistance, as this is a regression from a previous version.

Example

No code snippet is provided as the issue is related to the Claude Code desktop app's functionality and not a specific code snippet.

Notes

The issue seems to be specific to the Claude Code desktop app and its interaction with SSH key authentication. The fact that the same key works from PowerShell suggests that the issue is not with the key itself, but rather with how the app is handling it.

Recommendation

Apply workaround: Use an alternative method to connect to the server, such as using a different SSH client or a different authentication method, until the issue is resolved in the Claude Code app. This is because the current version of the app has a regression that breaks the workflow, and using a workaround can help mitigate the issue until a fix is available.