title: Nginx reverse proxy falling after update Docker to 1.13
body: <p>i'm having a connection timed out issue with nginx reverse proxy since yesterday when we updated docker to version 1.13</p>
  
  <p>here is the error log from Nginx </p>
  
  <pre><code>upstream timed out (110: Connection timed out) while connecting to upstream, client: 10.255.0.3, server: 10.1.232.220, request: "GET /Microservice/microservices HTTP/1.1", upstream: "http://10.255.0.10:8765/Microservice/microservices", host: "10.1.232.220"
  </code></pre>
  
  <p>The nginx is a service inside a docker swarm where also is the backend that i'm trying to call, i make a ping from the nginx container to the ip showing in the error log and there is no problem, any ideas on this issue? </p>