I'm Trying to created a shared Data source from a sql server that is not local. the host of SSRS is a sql server 2014 and the DB source is a sql server 2008 R2.
I'm getting the same error whatever I do, which is
"An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"
I know everything is correct because even though I get this error when I run the report, in MSSQL report builder when I create a dataset and go to query designer and run the query it actually runs without any issues.
furthermore also in report builder when I try to do a connection embedded in my report and when I'm in the connection builder (connection properties) and I test the connection from there it gives me "the test connection suceeded" however when I click ok, go back to the datasource properties, and click "test Connection" it fails and gives me the error above.
If I try to test a shared connection on the server it will fail too.
I've tried connecting in many different ways (using windows athentication (my user is admin on the server), SQL server authenticationm, promting, etc) but they all failed.
I've been at this for a while, the server is also accesed by a remote PHP server so I doubt there is any real issue on the SQL server. I've tried deactivating all of the firewalls I saw but I doubt it's a firewall issue since I"m able to do all these connections.
the issue was the port 1433 that didn't work between the SSRS server and the datasource server. however it did work between my computer and the sql server.
what was happening is that when I tested the connections, the first test was a quick test and went through my computer to test the connection thus it was sucessfull. when it did the real test it went through the SSRS server and it failed there.
the same logic applies when I did my requests, when I tested the dataset it worked because in report builder it went directly to the database through my computer, when I tried to run the report it went through the SSRS server and failed there.
so there is some issue with the firewall even though it is turned of on both servers it's the connection between the two that isn't working.
Related
Dear stackoverflow community,
I have a problem using Direct Query connect in Power BI. I have an SQL Express server running on a remote server with a Linux operating system. I connect to this server using a VPN. I can connect to this SQL server with my local MS SQL Express installation no problem. I can also import the data to my local Power BI desktop installation using Get Data>SQL Server>Import.
However when I try to use Direct Query, it fails after executing for a while and setting up the Direct Query connections. I receive the following Error Message:
"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);The network path was not found. The exception was raised by
the IDbConnection interface."
It's also interesting that it appears like something is loading in the fields pane
I feel it could be a problem with allowing remote connections in the Linux remote MS SQL Express Server, but have found no way of allowing this in Linux. On my Windows installation it's no problem.
I'm really excited to solve this issue and start building my dashboard. But I need a live connection for that...
Thank you for your time reading this and your replies in advance.
This was solved by using the 64 bit version Power BI from the microsoft store and not adding the portnumber when making the sql connection. I recommend admins not to delete this as finding this solution wasn't too straightforward.
I have a very weird issue with SSAS Tabular connecting to a SQL Server source database. I've spent almost the entire day on this, and searched online in various ways to find a helpful answer, but none of the suggestions solved this mysterious problem for me.
It used to work fine, but I tried various connection settings (Windows vs SQL authentication, and different impersonation modes), but now I no longer can get it to work (even if I revert back to the previous bim file in source control).
When I process a table from the WORKSPACE database (through SSMS), it works. But when I process a table from the DEPLOYED database (still through SSMS), it does NOT work.
The connection I am using is:
-SQL Server Native Client 11.0
-Windows Authentication
-Impersonation mode of a Windows account (which has the appropriate permissions)
The source database is in a SQL Server database located on a different server (but in the same network).
I have searched everywhere online, but didn't find anything that could help me.
I have tried changing the connection driver (OLE DB Provider for SQL Server), and I have restarted the SSAS Tabular service.
The full error message I get when trying to process a table on the deployed database is:
Failed to save modifications to the server. Error returned: 'OLE DB or ODBC error: Login timeout expired; HYT00; A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online.; 08001; Named Pipes Provider: Could not open a connection to SQL Server [5]. ; 08001.
A connection could not be made to the data source with the Name of 'DataWarehouse'.
'.
In fact, after I tried a second time to restart the SSAS Tabular service, the error message I get after attempting to process a table is slightly different:
Failed to save modifications to the server. Error returned: 'OLE DB or ODBC error: A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online.; 08001; SSL Provider: The requested security package does not exist
; 08001; Client unable to establish connection; 08001; Encryption not supported on the client.; 08001.
A connection could not be made to the data source with the Name of 'DataWarehouse'.
'.
According to your description, it seems to be related to connection problem. You need to check whether corresponding SQL server service and SSAS Service is running(check server which contains "DataWarehouse" is running and can be connected). You could go to "SQL Server Configuration Manager " to restart them.
In addition, you also need to make sure your current windows credential can access this database(if you use window credential). And check whether this server enable remote connect.
Zoe
We have an older machine that hosts a bunch of test databases. It was working fine for years. One day a few months ago, we could no longer open SQL Admin on that machine. When you tried, you get the dreaded:
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)
Note that we are running everything on this one machine. We are not trying to connect over the network from another machine. I tried variations on MS's page and on various SO threads on the topic:
the firewall is off
the server is running, as is the name service
it is configured for remote connections
we've rebooted it
Again, this was all working fine, and we changed nothing on that machine. I suppose a Win update may have occurred.
On a lark, today I tried making a new DSN to the same server, using SQL Client 11. It saw the server in the combo (took a while), and the test connection worked fine. But SQLSM still fails!
Does anyone know what connection type the Native Client would use, and what that driver uses to populate the server list?
My suspicion is that something is wrong with the named pipes service. If ODBC uses named pipes, then I'm a bit stumped.
I'm trying to connect to my local machine name as "Server Name", and giving windows authentication, but its throwing some error:-
"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)
(.Net SqlClient Data Provider)"
Please note previously it was connecting all well some few months back, but now it throws error. I tried lot of alternatives provided around the web, but nothing worked.
Did I miss something ?
If the service is running on your local machine, try connecting with "LocalHost" as the server name.
Also, did you check that the service is running?
There are several reasons for this to happen:
Check if your SQL is up and running
Check there is no firewall messing around
Check on the configuration manager if sql services is up
Check if TCP/IP is active on the configuration manager
Sometimes, I know is weird, but his error shows up if you haven't configured your server for mixed security (both windows and SQL Server). Try connecting with a windows user with SA permissions and activate SQL authentication as well.
To do this, open SQL Server manager and connect with the SA user, right click on the server properties, check the "Security" tab for "SQL Sever and windows authentication mode"
Check this blog post that will lead you from some of the points I told you.
http://blog.sqlauthority.com/2009/05/21/sql-server-fix-error-provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server-microsoft-sql-server-error/
I have checked the instance name, auto close is set to true, allow remote connections on the server is checked. The server is running when I open the SQL Server configuration manager. I have even rebooted. I have created this db the same way as all others. I use Entity Framework and have checked the names in the web.config and they match. This is the default connection string from the wizard - I use for testing before I deploy. I just can't think of anything else to check to figure out why it won't connect. Working inside SQL Server everything is fine.
Here is the general error.
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: Shared >Memory Provider, error: 40 - Could not open a connection to SQL Server)
Config:
connectionString="metadata=res://*/Model.csdl|res://*/Model.ssdl|res://*/Model.msl;provider=System.Data.SqlClient;provider connection string='data source=.\SQL_1;attachdbfilename="C:\Program Files (x86)\Microsoft SQL Server\MSSQL10_50.SQL_1\MSSQL\DATA\A_db.mdf";integrated security=True;connect timeout=10;user instance=True;multipleactiveresultsets=True;App=EntityFramework'" providerName="System.Data.EntityClient" />
Thanks in advance.
Let me preface this answer by saying that proper setup of a SQL instance is not as easy as Microsoft would like you to think with the entity framework. It's a little bit involved and requires that you put your DBA hat on for a little bit.
The error you have indicates that the web instance is attempting to connect to the SQL server using Windows Integrated Security. This will work fine if (a) the windows user that the process is running as (which can be configured in IIS) is authorized to log on to the SQL server and has a valid login in the database and (b) if the SQL server is on the same machine or in the same domain as the IIS server.
In light of this, I recommend using SQL Server authentication. If you need to know how to do this, I recommend searching for "SQL Server Authentication setup" - here is an article that I found which might help you set this up.
http://msdn.microsoft.com/en-us/library/aa337562.aspx
In general, I recommend taking the following actions:
Connect to the sql server using MS SQL Management Studio.
Permanently attach your database, then use the Initial Catalog property on your connection string rather than AttachDbFileName
Then set up your login username and password on the SQL server, and create a login in the database for it.
Make sure your login can only execute the stored procedures you want it to execute. Deny it access to running sql statements.
You will also need to add the username and password to your connection string, and set IntegratedSecurity=false.
Let us know how things go once you get your SQL server set up properly.
This error means that your provider code cannot find the SQL Server. If you have checked the server instance name (it should be <yourLocalServer>\SQL_1), then it could be the attachdbfilename= parameter, as this is a really unreliable way to specify the database to connect to (you should be using the Database Name, not the file name), because there are about a hundred reasons that the file name could change that have nothing to do with your application.