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How To Repair Error 27502 SQL Server Does Not Exist Or Entry Is Denied



Listed here are some easy strategies that you should use to troubleshoot error 27502. The SQL server doesn’t exist or entry is denied.




There are a number of recognized causes for this error:

Purpose 1

The SQL Server database server identify has been modified, invalidating the present connection info. 1

Purpose 2

SQL Server will not be configured to make use of the required protocols. 2

Purpose 3

In SQL Server 2005, the server is assigned an occasion identify. This isn’t counted within the connection info. 3

Purpose 4

The SQL Server Browser service will not be operating or will not be configured accurately to hear on a port or channel for a selected DB occasion. 4


  1. SQL Server is operating
  2. To begin with, it’s essential to examine if SQL Server is operating or not.

    For e Then enter the command “Companies.msc” within the Run window.

  3. Occasion of SQL Server will not be obtainable or doesn’t exist
  4. Test your connection strings and ensure you are attempting to connect with the right server and that it’s obtainable on the community.

  5. Distant connection not enabled as an example of SQL Server
  6. To examine if distant connection is enabled or disabled, open SQL Server Administration Studio -> Use SQL Server Administration Studio to connect with the SQL Server it’s put in on -> Swap to SQL Server occasion and allow the Permit distant connection to this selection server.

  7. The port will not be added to the firewall exceptions listing
  8. Generally a messageThe error “SQL Server doesn’t exist or entry is denied” happens when a distant connection to SQL Server is enabled, however the port is blocked by the administrator for safety causes. …

    The SQL Server occasion is operating (by default) on port # 1433, so it’s essential to be certain the port exception has been added to the firewall as nicely.

    To examine for a port exception, do the next:

  • Go to Management Panel -> Open Administration Software -> Choose Home windows Firewall with Superior Safety.
  • Click on inbound guidelines within the left pane and choose New Rule in the suitable pane.

  • Within the New Inbound Rule Wizard, choose the Port choice and click on Subsequent.
  • On the subsequent tab, enter “1433” within the “Particular native ports” part and click on “Subsequent”.
  • Underneath What actions must you take if the connection meets the required situation? Within the part, choose the Permit the connection choice and click on Subsequent.
  • Test area: non-public, public. In line with howDoes this part apply? and click on Subsequent.
  • error 27502. sql server does not exist or access denied

  • Enter a reputation and click on End.
  • IP handle of SQL Server occasion blocked by firewall
  • To examine if SQL Server is lacking or denied entry on account of IP handle, examine the IP handle within the command line, for instance

    Ping - t

    When you obtain a response from the server, it signifies that there are not any issues with blocking the IP handle. If not, you have to add an exception (see level 4 above).



    Why SQL Server will not be connecting?

    To check the SQL server, do the next:
    1. Be aware of the IP handle of the server itself (admins most likely up to date the IP handle of the pc after cloning the field) by operating IPCONFIG.
    2. Open SQL Server Configuration Supervisor.
    3. Broaden your SQL Server community configuration.
    4. Choose Protocols for MSSQLSERVER.
    5. Double click on the suitable mouse button on TCP / IP.

    How do I resolve SQL error?

    Different Doable Causes of SQL Server Error 26 With Answer
    1. To repair SQL Server Error 26, open SQL Server Administration Studio, right-click the database and choose Properties.
    2. On the Safety web page, choose SQL Server and Home windows Authentication Mode and click on OK.
    3. Restart SQL Server.

    How do I repair SQL Server Error 53?

    SQL Server Error 53
    1. Restart the server first.
    2. Test if the connection string is mistaken.
    3. Ping and telnet server and host.
    4. Be certain SQL providers are operating on the goal pc.
    5. Allow TCP / IP in SQL Server configuration.
    6. Home windows Firewall providers are disabled (disabled)
    7. Be certain distant connection is enabled.