title: Tcp server close stuck at TIME_WAIT, cannot open server on the same port again
body: <p>I am using LwIP 1.4.1, my tcp server close is stuck at TIME_WAIT condition, hence I am unable to open server on the same port again. I have tried <code>SO_REUSE (#define SO_REUSEADDR 1</code>), but this also doesn't work, anyone have ideas?</p>
  
  <p>In time wait I have check that after around 30 secs, it goes out of timeout, I don't want to wait that long.</p>