Came across this while searching for a solution to the same problem.

In Nginx config I had to set the proxy_max_temp_file_size to 1024m. 

This solved the problem for me.

Hope this helps.

Hello @Hugues,

There might be an 2 reason for this:-

1. Check the internet Speed.

2. In odoo config,
did you setup below parameters values ?
limit_memory_hard, limit_memory_soft,limit_request,limit_time_cpu,limit_time_real

3. In Nginx Config,
Did you set client_max_body_size parameter sometimes Nginx kill the connection if didn't set the proper values of parameter.

Regards,

Email: odoo@aktivsoftware.com

Skype: kalpeshmaheshwari

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