title: MySQL Workbench drops connection when idle
body: <p>I'm using MySQL Workbench 6.3 on my OS X 10.9.5 to manage several cloud databases (hosted on Rackspace), and I get the following issue:</p>
  
  <p>When inactive for 5 minutes, the following problems happen:</p>
  
  <ul>
  <li>I cannot run any query (error 2013: Lost connection to MySQL server during query)</li>
  <li>when trying to browse tables on my db, I'm getting messages like "Tables could not be fetched", "Views could not be fetched", and so on</li>
  <li>when refreshing the left panel, I get a "Error Code: 2006 MySQL server has gone away"</li>
  </ul>
  
  <p>So basically the connection is gone.</p>
  
  <p>This is really annoying since it happens after only 5 minutes of inactivity. Therefore I need to close the connection and reopen it each time.</p>
  
  <p>I also tried this: <a href="https://stackoverflow.com/questions/15712512/mysql-workbench-how-to-keep-the-connection-alive">MySQL Workbench: How to keep the connection alive</a>, which didn't change anything.
  In my Workbench Preferences tab, I have the following setup:</p>
  
  <ul>
  <li>DBMS connection keep-alive interval (in seconds): 600</li>
  <li>DBMS connection read time out (in seconds): 600</li>
  <li>DBMS connection time out (in seconds): 60</li>
  </ul>
  
  <p>Notice that this issue happens <strong>precisely after 5 minutes of inactivity!</strong> If I run two queries in a 4'59 minutes interval it works perfectly fine.
  Also my colleagues who connect to the same database on their Workbench don't have this issue.</p>
  
  <p>Does anybody have a solution for this?</p>