Cannot open backup device '\\Servername\backup$\Database\databasename.bak'. Operating system error 53(The network path was not found.)
<p>I used </p>

<blockquote>
  <p>Microsoft SQL Server 2012 (SP3) (KB3072779) - 11.0.6020.0 (X64) 
  Standard Edition (64-bit) on Windows NT 6.1  (Build 7601: Service Pack 1)</p>
  
  <p>1)I have an Maintenance Plan, which backup sql database in a network share.</p>
  
  <p>2) Backup execute every day in 17:00</p>
  
  <p>3) Sql server services and SQL Agent services running domain accounts
   Domain\SQLServer</p>
  
  <p>4) Remote Network share : \\Servername\backup$\Database\databasename.bak</p>
  
  <p>5) Network path "backup$" have a full rights domain accounts
   Domain\SQLServer and path "Database" have a full rights domain accounts
   Domain\SQLServer.</p>
  
  <p>6) But i get this error 
  <strong>Cannot open backup device '\\Servername\backup$\Database\databasename.bak'. Operating system error 53(The network path was not found.).</strong></p>
  
  <p>7) I can't understand what could be the problem.</p>
  
  <p>8) I noticed one interesting moment. When i forced update sql server in a sql management studio and run manually maintenance plan, backup run success and databasename.bak appears on remote network share, but when i start maintenance plan automatically, plan success work 2-3 days but then history again <strong>Cannot open backup device '\\Servername\backup$\Database\databasename.bak'. Operating system error 53(The network path was not found.)</strong>. I have no idea what it could be.</p>
</blockquote>