Error with SSH connection: Failed to connect to the host via ssh: mux_client_request_session

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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
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!