When I try and connect to the SQL Server database, I get this error :
The TCP/IP connection to the host P5CPAJJDAD01.CORP.AD.CTC, port 1433 has failed.
Error: Connection refused: connect. Verify the connection properties. Make sure that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port. Make sure that TCP connections to the port are not blocked by a firewall
I can access the database using Python and also MS Access database. I'm trying to use KNIME (an analytics tool) to connect with the database but it throws that error. Which is odd considering that I can access the exact same database using Python and MS Access.
Could this be a security issue?
Related
I need to connect Jmeter to my local MS SQL Server database. Everything works fine, when I'm working with remote databases, but when it comes to local databeses I get stuck at the beginning.
I've tried these settings to connect to my DB:
Database URL: jdbc:sqlserver://DESKTOP-IEK3G1S\SQLEXPRESS;DatabaseName=TestBase
JDBC Driver class : com.mircrosoft.sqlserver.jdbc.SQLServerDriver
And this is what i get:
Response message: java.sql.SQLException:
Cannot create PoolableConnectionFactory (The connection to the host DESKTOP-IEK3G1S, named instance sqlexpress has failed.
Error: "java.net.SocketTimeoutException:
Receive timed out". Verify the server and instance names, check that no firewall is blocking UDP traffic to port 1434, and for SQL Server 2005 or later verify that the SQL Server Browser Service is running on the host.)```
Well, I had to recreate my SQL Browser connection and manually shutdown everything that was turned on in my Firewall options and everything has started working.
Enable TCP/IP in the SQL server configuration:
Enable IP address and set the desired TCP port for the connection:
SQL Server default TCP port is 1433, most probably you should be using 1433 in your JDBC Connection Configuration setup
Enable SQL Server Authentication mode or add Integrated Security = true to your JDBC URL if you plan to connect with your current credentials (you will need to have sqljdbc_auth.dll file under Java Library Path)
Make sure to use matching SQL Server JDBC Driver
Change "Validation Query" to be select 1
I am running SQL Server and no matter what I do, I cannot access the server remotely using SQL Server Management Studio.
I keep getting this error:
A network related or instance specific error while establishing the connection to the server
I am able to access the server locally but not remotely using the correct connection details hostname etc.
I have configured/ensured the following:
SSMS server properties -> Security -> Authentication mode: SQL Server and Windows authentication mode
SSMS server properties -> Connections -> Allow remote connections
SQL Server & SQL Server Browser services are running
I have to tried to ping the server, I am getting 'Request timed out' but I am able access to the web server using browser?
Firewall TCP port 1433 is opened
In SQL Server configuration manager enabled and configured TCP/IP
What else can I check?
Thanks
Please try to do telnet in CMD
telnet serverip 1433
If you can't connect, ask your network admin to open port 1433 for source-destination and destination-source.
Hi All We have a server where we have sql server 2008 as well as SQL server 2005 hosted on port 1444. Using SSMS, I am able to connect to 2008 instance without any problem. But when I try to connect to 2005 instance using following connection settings.
DEVDB1\SQL_2005,1444
SQL server authentication user name and password.
I get following 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: TCP
Provider, error: 0 - A Connection attempt failed because the connected
party did not properly respond after a period of time, or established
connection failed because connection host has failed to
respond)(Microsoft SQL Server, Error: 10060)"
I am able to connect to another instance on the same server. but not this.
NOTE: My colleagues are able to connect to this sql server with the same settings. It just does not work from my machine. Me and all my colleagues are working on VPN and have same machine configuration.
Is there any setting that I need to do/check to get successfully connected?
My VPN user profile was restricting access to this perticular port. Once my VPN user profile is matched with those who were able to access, the problem resolved.
i am having management stdio 2005 in my machine and im tring to connect to sql server 2008
i'm receiving the following message as the inner exception .
{"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)"}
can anyone please help
thanks,
vijay.
The protocol you're using (Named Pipes) is only valid if you're connecting to the local machine. If you're connecting to a remote machine, you need to enable the TCP protocol.
Other things to check:
Is your connection string correct? Server name spelled correctly?
Is any firewall allowing TCP traffic? The default port is 1433 for a basic setup.
Open up the SQL Server Configuration Manager
Expand the node "SQL Server Network Configuration"
Click on protocols node
Right click on "Named Pipes" -> Enable
Restart the SQL Server service
Make sure the database is configured to allow remote connections.
If using an instance, ensure you're pointing at that instance in your connectionstring.
I've installed an instance of SQL 2005 Express on <computername>/SQLEXPRESS. There is only once instance installed. I've allowed remote connections, turned on SQL authentication, enabled TCP/IP, Named Pipes and VIA but I still can't access the database from another computer. I keep getting:
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: SQL Network
Interfaces, error: 26 - Error Locating
Server/Instance Specified)
What else can I look for? I'm sure my code is correct as it was used to connect to this same system prior to it being wiped. I'm pretty confident the connection string is correct as well:
Server=<computername>\SQLEXPRESS;User Id=<username>;Password=<password>;
There's also no firewalls standing between the two systems. They're on the same network segment and Windows Firewall has been shut off completely.
Is the SQL Server Browser running on the machine? For named instances, like \SQLExpress, the SQL Browser allows client machines to identify which port to connect to.
By default, only the default instance runs on TCP 1433. If the client can't connect on the default port, it queries the SQL Browser at UDP 1434 to locate the correct port to use for a given named instance.