title: What causes a TCP/IP reset (RST) flag to be sent?
body: <p>I'm trying to figure out why my app's TCP/IP connection keeps hiccuping every 10 minutes (exactly, within 1-2 seconds).  I ran Wireshark and discovered that after 10 minutes of inactivity the other end is sending a packet with the reset (RST) flag set. A google search tells me "the RESET flag signifies that the receiver has become confused and so wants to abort the connection" but that is a little short of the detail I need. What could be causing this? And is it possible that some router along the way is responsible for it or would this always come from the other endpoint?</p>
  
  <p><strong>Edit:</strong> There is a router (specifically a Linksys WRT-54G) sitting between my computer and the other endpoint -- is there anything I should look for in the router settings?</p>