Downloading http://security.debian.org/dists/wheezy/updates/InRelease...
Downloading http://security.debian.org/dists/wheezy/updates/Release...
ERROR: unable to fetch mirror: http://security.debian.org/dists/wheezy/updates/Release: Get http://security.debian.org/dists/wheezy/updates/Release: http: error connecting to proxy http://127.0.0.1:3137: dial tcp 127.0.0.1:3137: connection refused
