title: The response is not returned from Azure Database for MySQL when I try to connect from command prompt and MySQL Workbench
body: <p>I run into the problem which I wrote as a Title.</p>
  <p>The details are below.</p>
  <h2>Environments and Settings</h2>
  <ul>
  <li>using the Azure free plan.</li>
  <li>created Azure Database for MySQL server (version 8.0).</li>
  <li>Deny public network access: No</li>
  <li>added firewall rule Start IP: 0.0.0.0 - End IP: 255.255.255.255.</li>
  <li>Enforce SSL connection: DISABLED</li>
  <li>Client OS: Windows 10 Pro Version 2004 OS Build 19041.685</li>
  </ul>
  <p><a href="https://i.stack.imgur.com/Jy6To.png" rel="nofollow noreferrer">Overview</a><br />
  <a href="https://i.stack.imgur.com/W4zJw.png" rel="nofollow noreferrer">Connection security</a></p>
  <h2>Ehenomenon</h2>
  <ul>
  <li>I can connect from Azure Cloud Shell.</li>
  <li>I can connect from local <a href="https://dbeaver.io/" rel="nofollow noreferrer">DBeaver</a> client (Community Edition 21.2.3).</li>
  <li>However, I cannot connect from local Command Prompt or MySQL Workbench. The response is not returned.<br />
  It seems to be hanged out. I allowed these apps to communicate via Windows Defender firewall.</li>
  </ul>
  <p><a href="https://i.stack.imgur.com/U66aw.png" rel="nofollow noreferrer">Azure Cloud Shell</a><br />
  <a href="https://i.stack.imgur.com/msz2B.png" rel="nofollow noreferrer">DBeaver</a></p>
  <p><a href="https://i.stack.imgur.com/YUWTi.png" rel="nofollow noreferrer">Command Prompt</a>
  <a href="https://i.stack.imgur.com/cOJ11.png" rel="nofollow noreferrer">MySQL Workbench</a></p>
  <p><a href="https://i.stack.imgur.com/I6WoU.png" rel="nofollow noreferrer">Firewall</a></p>
  <p>What's wrong? Please help.</p>