https://svn.boost.org/trac10/ticket/12916 <p> My Tcp server occasionally has async_read calls failing with: The semaphore timeout period has expired (121) This is from boost::asio::async_read on a connected TCP socket. I have master and slave server communication, Slave is sending request to master and master socket is showing "The semaphore time out period has expired". Is there any way to handle this issue on requested server? </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/12916 Trac 1.4.3 viboes Sat, 29 Apr 2017 01:55:12 GMT https://svn.boost.org/trac10/ticket/12916#comment:1 https://svn.boost.org/trac10/ticket/12916#comment:1 <ul> <li><strong>owner</strong> changed from <span class="trac-author">Anthony Williams</span> to <span class="trac-author">chris_kohlhoff</span> </li> <li><strong>component</strong> <span class="trac-field-old">thread</span> → <span class="trac-field-new">asio</span> </li> </ul> Ticket