I installed SQLManagementStudio_x64_ENU from Microsoft site on my Windows 7 Home Premium.
It gave me compatibility warnings but I still installed because Microsoft site specified that I would receive warnings but suggested to click on Run Program, which I did.
It was successfully installed. I checked Services.msc, and I can see two SQL Server services are running. I checked SQL Server Configuration, and I can see services running under automatic mode, and the agent is off.
When I open my management studio and try to connect using «Server name» option, I can’t see any server instance in browse option. There are no servers to connect. I am not able to connect to the database engine. I have tried at least 10 times, but still, it’s not allowing me to connect.
I get the following error:
A network-related or instance-specific error occurred while establishing a
connectionto SQL Server. The server was not found or was not accessible.
Verify that the instance name is correct and that SQL Server is configured to
allow remote connections.
(provider: Named Pipes Provider, error: 40 — Could not open a connection
to SQL Server) (.Net SqlClient Data Provider)
Can someone help me with this problem?
I installed MSSQL server 2016 with configuration manager and management studio. I trying connect to SQL server via management studio:
- Server type: Database Engine
- Server name: localhost
- Authentication: Windows Authentication
Error TITLE: Connect to Server:
Cannot connect to localhost. A network-related or instance-specific
error occurred while establishing a connection to SQL Server. The
server was not found or was not accessible. Verify that the instance
name is correct and that SQL Server is configured to allow remote
connections. (provider: Named Pipes Provider, error: 40 — Could not
open a connection to SQL Server) (Microsoft SQL Server, Error: 2) The
system cannot find the file specified
Nothing more information in event viewer. I have these services with states:
- SQL Server (SQLEXPRESS) — Running
- SQL Full-text Filter Daemon Launcher (SQLEXPRESS) — Running
- SQL Server Launchpad (SQLEXPRESS) — Running
- SQL Server Reporting Services (SQLEXPRESS) — Running
- SQL Server Agent (SQLEXPRESS) — Stopped
- SQL Server Browser — Running
After try start SQL Server Agent i get this error:
The SQL Server Agent (SQLEXPRESS) service on Local Computer started
and then stopped. Some services stop automatically if they are not in
use by other services or programs.
Thank you for any advice.
EDIT
I capture a screen of sql services:
asked Aug 10, 2018 at 13:09
10
I could solve the same issue only with server name (localdb)MSSQLLocalDB
. Just FYI
answered Jul 24, 2019 at 9:01
sandysandy
4641 gold badge6 silver badges13 bronze badges
In an attempt to get all the answers in one spot (and hopefully help a future searcher), you can connect to the SQL box that SQL Management Studio is installed on by changing the Server name:
in the connection dialog
to one of the following:
(localdb)MSSQLLocalDB
.
127.0.0.1
— by direct IP address, this is your loopback IP- The actual IP address of the machine
- The name of the machine you are on, several ways to figure this out. https://www.cnet.com/how-to/find-out-your-computers-name-and-windows-edition-in-two-clicks/
- The named instance of SQL you have locally installed, in this case:
.SQLEXPRESS
- The machine name and the SQL instance like:
YOURCOMPUTERNAMESQLEXPRESS2017
LOCALHOST
answered Aug 10, 2018 at 14:25
sniperdsniperd
5,0846 gold badges28 silver badges43 bronze badges
2
May be this is familiar to many, but I believe new starters may find this helpful! As similar like above snapshot provided in the problem, I did not find MSSQLSERVER service is showing in SQL Server Configuration Manager. The reason is that I just installed the exe, but failed to do sql server setup actually! To make my ‘localhost’ as server name with windows authentication works, I followed below steps.
- Open SQL Server 2019 Installation Centre. [Note: For SQL Server Installation Media Path, choose location C:SQL2019Express_ENU]. This will open installation Wizard.
- Go to Installation -> Choose ‘New SQL Server stand-alone installation or add features to an existing installation’
- In Installation Type -> Choose ‘Perform a new installation of SQL Server 2019’
- Follow the instructions and in between the setup, it will prompt to setup password for ‘sa’. You can choose either windows mode or mixed mode ( i.e. windows and sql server authentication). [NOTE: This sa password setup will not be prompted during installation from exe.]
- Complete the setup.
- Once completed, you can see ‘MSSQLSERVER’ is running.
- Just type in ‘localhost’ with windows authentication by default.
- This time, just enter ‘localhost’ in server name like below
- It will then connected immediately without any hassles.
answered Jun 13, 2022 at 13:33
ViswaViswa
73110 silver badges30 bronze badges
Здравствуйте! Помогите, пожалуйста, решить проблему.
Начало описания.
Хочу поработать в SQL Server Management Studio 15.0.18092.0
Клиентские средства служб Microsoft Analysis Services 15.0.1000.65
Компоненты доступа к данным (MDAC) 10.0.17134.1
Microsoft MSXML 3.0 6.0
Microsoft Internet Explorer 9.11.17134.0
Microsoft .NET Framework 4.0.30319.42000
Операционная система 6.3.17134
Нажимаю «Соединить», появляется ошибка:
Отчет об ошибке:
При установлении соединения с SQL Server произошла ошибка, связанная с сетью или с определенным экземпляром. Сервер не найден или недоступен. Убедитесь, что имя экземпляра указано правильно и что на SQL Server разрешены
удаленные соединения. (provider: SQL Network Interfaces, error: 26 — Ошибка при обнаружении указанного сервера или экземпляра) (.Net SqlClient Data Provider)
ЗАГОЛОВОК: Соединение с сервером
——————————
Невозможно подключиться к DESKTOPMSSQLSERVER01.
——————————
ДОПОЛНИТЕЛЬНЫЕ СВЕДЕНИЯ:
При установлении соединения с SQL Server произошла ошибка, связанная с сетью или с определенным экземпляром. Сервер не найден или недоступен. Убедитесь, что имя экземпляра указано правильно и что на SQL Server разрешены
удаленные соединения. (provider: SQL Network Interfaces, error: 26 — Ошибка при обнаружении указанного сервера или экземпляра) (Microsoft SQL Server, ошибка: -1)
Чтобы получить справку, щелкните: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476
Моя догадка: не включена служба Виндовс 10 — хочу запустить, появляется ошибка:
Не удалось запустить службу SQL Server на Локальный компьютер. Подробности содержатся в журнале системных событий. Если эта служба разработана не в Майкрософт, обратитесь к разработчику службы, и сообщите специфический для этой службы код ошибки
17051.
Конец описания.
-
Перемещено
29 марта 2019 г. 8:23
@Ksusha_tupysha
Girl, 23 года
Ошибка:
A network-related or instance-specific error occurred while establishing a connection to SQL Server.
The server was not found or was not accessible.
Verify that the instance name is correct and that SQL Server is configured to allow remote connections.
(provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
(Microsoft SQL Server, Error: 2)
Database Name .
и тип аутентификации «Windows Authentication».
-
Вопрос задан25 окт. 2022
-
182 просмотра
Пригласить эксперта
По умолчанию именованный канал для локального сервера: \.pipesqlquery
.
Verify that the instance name is correct and that SQL Server is configured to allow remote connections.
ЕМНИП, по-умолчанию сетевые соединения запрещены, нужно явно разрешить их через SQL Server Configuration Manager. Возможно, потребуется и перезапуск сервера
-
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Минуточку внимания
Most corporate companies use MS SQL for maintaining their attendance records. Some use it for keeping employees’ details. Whatever may be the reason for using the MS SQL Server, even a small error is frustrating. One of the frequent errors that occur is Error 2. It usually occurs due to some problem in the SQL Server Management Studio. We can discuss this error later, but first, we should discuss the methods to fix MS SQL Error 2.
MS SQL Server Error 2- Could Not Open Connection
“A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that the SQL Server is configured to allow remote connections. (provided: Named Pipes Provider, error: 40- Could not open a connection to the SQL Server) (Microsoft SQL Server, Error: 2).”
This error occurs when the user tries to open his database in SQL Server Management Studio. So let’s move on to the methods that will fix this SQL database error.
Probable Reasons for this Error
As I have told you, I’ll discuss this error’s reasons later. So here are some of the possible reasons that are responsible for MS SQL Server 2- Could not open connection.
- Your SQL Services are disabled and troubling you while trying to connect the server to the SQL Server Management studio.
- Error in the SQL Server Instance Name at the time connecting the server.
- Permission to Allow The SQL Administrator disables remote Access Connection.
- The port number used in the SQL Server Management Studio might be incorrect.
- Under the SQL Server Configuration Manager, SQL Server Browser is disabled.
- The System Firewall might have blocked the port on which the SQL server is running.
Solutions of MS SQL Server Error 2 (Could not open connection)
Enable SQL Services
- Press Windows + R key to open the Run Command box.
- Enter the Command compmgmt.msc in the Open box and click on OK to run the command.
- The Computer Management window will open. Click on SQL Server Configuration in Services and Application.
- Choose SQL Server Services from the available options.
- Now, you can see 6 different types of Services of SQL Server.
- Start those Services.
Now see whether you can connect the database to the SQL Server Management studio or not. If you are facing the same error again, then try another method.
Enable Network Protocol
- Press Windows + R Key and open the Run
- Run the Command compmgmt.msc and Computer Management Window will open.
- Expand the SQL Server Configuration Manager option present on the left side of the Window.
- Then, Expand the Native Client 11.0 Configuration (32bit) and select the Client Protocol
- You’ll See Three Protocol options- Shared Memory, TCP/IP, and Named Pipes.
- If any of the protocols are disabled, then click on it and Enable the settings.
Now try to open the database in the SQL Server Management Studio, and I hope you’ll not face the MS SQL Server Error 2. If this method still hasn’t resolved your issue, then you can try the third technique.
Enable Remote Connection Permission
- Launch the MS SQL Server Management Studio on your PC.
- Under Object Explorer, go to the Server Name.
- Make a Right-Click on the Server Name and open
- Click on Connections on the left side of the Server Properties Window.
- Mark the Allow Remote Connections to the Server Box and click on OK to make changes.
Enabling the permission to allow remote connections to the server will resolve your issue and fix MS SQL Server error 2.
Give a Chance to SQL Recovery Tool
As you can see, all the above methods will help you resolve the SQL errors. But most of the SQL error is related to the problem in the MDF file. For example, I have told you how to resolve the SQL Server Error 2, but if the cause of this error is a corrupted MDF file, the manual ways will not be able to fix it. Therefore, the only option you are left with is SQL Recovery Tool and open MDF file successfully. This software repairs the corrupt MDF files and View SQL Log File of the SQL Server so that you might not face any error.
Conclusion
I hope you have got your answer. Various methods will help you to fix the MS SQL Server Error 2. Now it is up to you to decide the method because any method can resolve your issue. The manual methods are easy to apply as they have been explained in detail and step by step. If there is some problem with MDF or NDF, you have to use the SQL Recovery Tool to fix this error. I wish this blog might fix your problem.
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