当我尝试连接SQL Server时,我得到以下错误:
在建立与SQL Server的连接时,发生了与网络相关或特定于实例的错误。未找到服务器或无法访问服务器。验证实例名称是否正确,SQL Server是否配置为允许远程连接。(提供商:Named Pipes提供商,错误:40 -无法打开到SQL Server的连接)
当我试图在Visual Studio 2010中将数据库配置为gridview时抛出此错误。我不知道如何调试这个错误。
如何调试此错误?除了错误消息中提到的步骤之外,我还应该采取哪些步骤来确定这里到底发生了什么?
您可以测试以下方法。
a
Check the connection string of the project.
b
Go to services and restart SQLServer Instance.
c
Open 'SQLServer Configuration Manager'
In the left panel select 'SQLServer Network Configuration' and expanding it
Select 'Protocols for MSSQLServer'
In the right panel dbl click on 'TCP/IP'
In the 'Protocol' tab set the 'Enabled' to 'Yes'
In the 'IP Addresses' tab scroll to down
In the 'IPAll' set 'TCP Port' to 1433
d
Open 'Firewall with advanced security'
In the right tab select 'Inbound Rules'
在中间选项卡找到“本地端口”是1433的记录,如果你找不到它,尝试用以下级别创建它
In the Start menu, click Run, type 'WF.msc', and then click OK
In the left panel click the 'Windows Firewall with Advanced Security'
In the right panel right-click 'Inbound Rules', and then click 'New Rule'
In the Rule Type dialog box, select 'Port', and then click Next
In the Protocol and Ports dialog box, select 'TCP', and select 'Specific Local Ports', and then type the port number 1433, Click Next
In the Action dialog box, select Allow the connection, and then click Next
In the 'Profile' dialog box, checking the Domain, Private and Public, Then click Next
In the 'Name' dialog box, type 'SQL 1433 Port' and for a description write description for own. Then click Finish
Then in the middle tab double click the found item(Instance) or created item of 'SQL 1433 Port' name by you.
Select 'Scope' tab in opened dialog box(SQL Server Properties)
In the Local PC Go to google.com in your Browser and search 'My IP'.
then copy of your 'IP'
Go to the remote server and in the 'SQL Server Properties' dialog box of 'Scope' tab, in the 'Remote IP Address' select the 'These IP Addresses' option and click 'Add' button
In the opened dialog box(IP Address) select 'This IP Address or Subnet' option and paste your 'IP', click OK button.