Database Mail The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required in ASP.Net Application.

 The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required in ASP.Net Application.

Ref:

https://www.aspsnippets.com/Articles/GMAIL-Error-The-SMTP-server-requires-a-secure-connection-or-the-client-was-not-authenticated.aspx


when you configured database mail but still you are getting error 

solution:


you will get mail from your gmail account  and click on below link to activate it

Kindly click above link and turn on 

Now sending test mail 

success 

now we got mail from dbmail

Cannot connect to WMI provider. You do not have permission or the server is unreachable. Note that you can only manage SQL Server 2005 and later servers with SQL Server Configuration Manager. Invalid namespace [0x8004100e]

Cannot connect to WMI provider. You do not have permission or the server is unreachable. Note that you can only manage SQL Server 2005 and later servers with SQL Server Configuration Manager.
Invalid namespace [0x8004100e]


https://support.microsoft.com/en-in/help/956013/error-message-when-you-open-sql-server-configuration-manager-in-sql-server-cannot-connect-to-wmi-provider.-you-do-not-have-permission-or-the-server-is-unreachable


I have installed SQL 2012 on my machine but when i tried to open configuration manager i got 
error as above

to work around see this page

https://support.microsoft.com/en-in/help/956013/error-message-when-you-open-sql-server-configuration-manager-in-sql-server-cannot-connect-to-wmi-provider.-you-do-not-have-permission-or-the-server-is-unreachable


This problem also occurs if you uninstall the 32-bit instance, and you then open SQL Server Configuration Manager.

Cause

This problem occurs because the WMI provider is removed when you uninstall an instance of SQL Server. The 32-bit instance and the 64-bit instance of SQL Server share the same WMI configuration file. This file is located in the %programfiles(x86)% folder.

Workaround

To work around this problem, open a command prompt, type the following command, and then press ENTER:

mofcomp "%programfiles(x86)%\Microsoft SQL Server\number\Shared\sqlmgmproviderxpsp2up.mof"

Note For this command to succeed, the Sqlmgmproviderxpsp2up.mof file must be present in the %programfiles(x86)%\Microsoft SQL Server\number\Shared folder.

The value of number depends on the version of SQL Server:nnn

Microsoft SQL Server 2012	110
Microsoft SQL Server 2008 R2	100
Microsoft SQL Server 2008	100
Microsoft SQL Server 2005	90

After you run the Mofcomp tool, restart the WMI service for the changes to take effect. The service name is Windows management Instrumentation. 

after run this query in command prompt now am open configuration manager it opens with no issue

Thanks for reading

How many CPU cores is SQL Server using?

How many CPU cores is SQL Server using?

CPU count:

select cpu_count from sys.dm_os_sys_info


How many CPU cores is SQL Server using:

select scheduler_id,cpu_id, status, is_online from sys.dm_os_schedulers where status='VISIBLE ONLINE'