Hi itpp2012 thanks for the swift response :), I am not proxying to PHP Nginx passes the request to the fastcgi upstream Nginx + PHP are both on the same machine just the storage machine (the mapped hard drive) is seperate.

I did look in the docs and find this "fastcgi_buffering off;" And "proxy_buffering off;"
http://nginx.org/en/docs/http/ngx_http_fastcgi_module.html#fastcgi_buffering
http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_buffering

Is that what you are referring to ?

I will give a go with those directives and reply back if it is fixed or not.