title: Login failed for user 'sa'. error
body: <p>I got an error, and I didn't find the solution.</p>
  
  <p>Description:</p>
  
  <blockquote>
    <p>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. </p>
  </blockquote>
  
  <p>Exception Details:</p>
  
  <blockquote>
    <p>System.Data.SqlClient.SqlException: Cannot open database "mcommon"
    requested by the login. The login failed. Login failed for user 'sa'.</p>
  </blockquote>
  
  <p>My SQL string:</p>
  
  <pre><code>PACKET SIZE=4096;USER ID=sa;PASSWORD=**hidden**;
  DATA SOURCE=localhost;PERSIST SECURITY INFO=False;
  INITIAL CATALOG=mcommon;CONNECTION TIMEOUT=60;
  </code></pre>
  
  <p>I think my SQL string is correct, because I can connect another server with this string. My SQL user information is true &ndash; I can connect with SQL Management Studio.</p>
  
  <p>Please help me.</p>