code-mode host exited during handshake; the 5.6 model is not working properly

[yanweichao123]

What version of the Codex App are you using (From “About Codex” dialog)?

版本 26.820.71523

What subscription do you have?

pro 20x

What platform is your computer?

win10 H22

What issue are you seeing?

刚才无法自动读取目录，是因为本地命令执行通道在初始化握手阶段异常退出（code-mode host exited during handshake），不是项目文件损坏，也不是中文路径导致的。 5.6模型无法正常使用现在只能用5.5

What steps can reproduce the bug?

Feedback ID: 01a0418f-d5fa-7d72-bb4a-c67e8bb31044

What is the expected behavior?

No response

Additional information

No response

[github-actions]

English translation:

What version of the Codex App are you using (From “About Codex” dialog)?

Version 26.820.71523

What subscription do you have?

pro 20x

What platform is your computer?

win10 H22

What issue are you seeing?

The directory could not be read automatically just now because the local command execution channel exited unexpectedly during the initialization handshake (code-mode host exited during handshake). It was not caused by corrupted project files or a Chinese path. The 5.6 model is not working properly, so I can only use 5.5 now.

What steps can reproduce the bug?

Feedback ID: 01a0418f-d5fa-7d72-bb4a-c67e8bb31044

What is the expected behavior?

No response

Additional information

No response

[github-actions]

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

• GPT-5.6 Sol local tools fail in Codex Desktop on Windows: code-mode host exited during handshake #40944
• Windows Codex Desktop GPT-5.6 fails with "code-mode host exited during handshake" while GPT-5.5 Desktop and GPT-5.6 CLI work #40943
• [Windows][Codex Desktop 26.820.7780.0] GPT-5.6 Sol Ultra tool calls fail with "code-mode host exited during handshake", while GPT-5.5 works #40798
• [Windows] All Codex tool calls fail with “code-mode host exited during handshake” #41034
• The Codex desktop app's execution service (codex-code-mode-host.exe) exits during handshake, so every exec tool call fails. The error is intermittent but frequent.bug #40899

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[xiaoyierle]

我也遇到了，重装chatgpt，重启电脑都不行，这个能降版本吗？

[zhangnaf8-dot]

我也遇到了，有解决么

[15555573654]

遇到+1

[672771761]

I’m experiencing the same issue. Has anyone found a solution or workaround for this?

[ZhouMM92]

遇到了+1，无法读写文件，并且显示原始信息为：
code-mode host exited during handshake

[wangzongshuji]

Has the same problem not been solved yet?

[zhangwuji20260115-art]

Has the same problem not been solved yet?

[s1lencewill]

+1