# Error with SSH connection: Failed to connect to the host via ssh: mux\_client\_request\_session

**URL:** <https://forum.ansible.com/t/error-with-ssh-connection-failed-to-connect-to-the-host-via-ssh-mux-client-request-session/27918>\
**Category:** AWX Project\
**Tags:** awx\
**Created:** [June 29, 2018, 6:06pm UTC](https://forum.ansible.com/t/error-with-ssh-connection-failed-to-connect-to-the-host-via-ssh-mux-client-request-session/27918 "2018-06-29T18:06:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Carlos\_Fuentealba](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@Carlos\_Fuentealba](https://forum.ansible.com/u/Carlos_Fuentealba)\
**Post date:** [June 29, 2018, 6:06pm UTC](https://forum.ansible.com/t/error-with-ssh-connection-failed-to-connect-to-the-host-via-ssh-mux-client-request-session/27918/1 "2018-06-29T18:06:45Z")

</div>

Hello everybody,

I’m using an AWX (container version) and everything works just fine, except for one specific connection.  
One node (client) is running _Wind River Linux 5.0.1.41 (ERICSSON modified)_ and when i try to execute my task, the debug gives me this error:

`

Using /etc/ansible/ansible.cfg as config file  
SSH password:

PLAY [Respaldos de AWX Local] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*

TASK [Gathering Facts] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
fatal: [10.176.238.197]: UNREACHABLE! =\> {“changed”: false, “msg”: “Failed to connect to the host via ssh: mux\_client\_request\_session: read from master failed: Broken pipe\r\nFailed to connect to new control master\r\n”, “unreachable”: true}

PLAY RECAP \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
10.176.238.197 : ok=0 changed=0 unreachable=1 failed=0

`

But when i’ve connect directly from the container it just works.

`

root@awx:~# docker exec -it 6dfc6ebd184a bash  
[root@awx awx]# ssh [cfuentea@10.176.238.197](mailto:cfuentea@10.176.238.197)  
Password:  
Wind River Linux 5.0.1.30  
Installed: Tue Mar 1 11:37:20 CLT 2016  
Last login: Wed Jun 27 09:53:22 2018 from 10.184.8.41  
WARNING: There is non-checkpointed configuration  
=== MMT-LAB-MME01-ERIC cfuentea@eqm01s0fp2 ANCB ~ #

`

Any advice?

Thank you!