Salam (means Hello) :)

I have the latest version of node.js installed on ubuntu 12.04, I'm not behind any proxies, and my network settings are correctly configured, and were intact since last time when NPM worked fine. But now NPM hangs up installation of any modules with following error:

nasser@nasser-desktop:~/projects/server v3$ npm install simple-proxy
npm WARN package.json docco@0.6.2 No repository field.
npm http GET https://registry.npmjs.org/simple-proxy
npm http GET https://registry.npmjs.org/simple-proxy
npm http GET https://registry.npmjs.org/simple-proxy
npm ERR! network socket hang up
npm ERR! network This is most likely not a problem with npm itself
npm ERR! network and is related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network 
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'
npm ERR! System Linux 3.5.0-17-generic
npm ERR! command "/usr/bin/node" "/usr/bin/npm" "install" "simple-proxy"
npm ERR! cwd /home/nasser/projects/serverV3
npm ERR! node -v v0.10.18
npm ERR! npm -v 1.3.8
npm ERR! code ECONNRESET
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /home/nasser/projects/serverV3/npm-debug.log
npm ERR! not ok code 0