I have a SQL Server instance installed on my VPS I've followed all the usual steps to connect remotely including:
Allowing Remote Connections
Enabling TCP/IP + adding port 1433 to the IPAll range
Creating a Firewall rule to enable the connection
Still no luck though I always get the error message:
A network-related or instance-specific error occurred while establishing a connection to SQL Server
Is there something I missed?
you must check that also all the following
check the protocol named pipes is enabled
the IP port for named pipes is enabled (usually port# 445)
the SQL Server Browser service is started
Turns outt he problem was that I hadn't allowed the SQL Server Browser through the Windows Firewall on Windows Server 2008.
So to fix:
Add an exception for the SQL Server Browser. (udp port 1434)
Related
I'm trying to connect to a sql server and its not allowing me to. This just recently started happening from what I can tell nothing was changed. The TCP port (1433) is enabled and allowed access through the firewall, the Named Pipes is enabled. I can ping the IP address of the SQL Server I am trying to connect to. I am running out of ideas fast!
Here is the error:
Cannot connect to (MyServerName)
ADDITIONAL INFORMATION:
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: 53)
The network path was not found
This was resolved. The company that was hosting the SQL Server I was trying to reach had blocked our cloud server IP address. Thanks for your help everyone!
Map your shared folder on both Sql Servers [ primary and secondary Sql server ] and try again to configure file log shipping may this help because in my scenario is working for me
When i try to remote connecto to my sql server i get this eror;
ADDITIONAL INFORMATION: 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: 53)`
My sql server is running on my windows 8.1 single language edition machine. I also have iis server running on it. and i can view the page from remote machine with no problem. Here are the list that i have done;
I opened port 1433 and 1434 and forwarded them to my machine.
I closed all firewalls.
SQL browser is running
İ can ping my ip.
I can connect the sql server from office with just writing the ip 192.168.2.18. My instance name is . However i can not connect it from outside of the office. What is i am doing wrong what must be my server name when connecting to the instance . Can i connect it by just ip without writing any instance name?
I have two Win 7 64 bit machines.
On the first one I have installed SQL Server 2008 R2 Express and have no trouble connecting via Management Studio with Windows Auth and also via SQL Auth with a user I set up on the database.
On the second machine I am trying to connect to the database on machine 1 using Management Studio. I'm trying SQL Auth. I therefore obviously also can't connect to it via connection string in my .NET Code
I can ping the first machine from the second.
Things I have tried include the following:
On the machine the database is installed make sure the firewall is allowing connection on Port 1433
Made sure SQL Server service is running
Made sure SQL Server Browser service is running
Created an exception for sqlbrowser.exe in the firewall
Enabled TCP/IP Protocol through SQL Configuration manager
Allowed Remote connections in SQL Server Management Studio
The error I get is:
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
This is the connection string I use in code
Data Source=xxx.xxx.xxx.xxx\sqlexpress;Initial Catalog=dbName;User Id=myUser;Password=myPassword;
This can be caused by a number of reasons but I'm glad my suggestion about checking firewall ports (rather than just allowing a one-way exception for SQL Browser) led you to the answer: the firewall wasn't allowing the correct port # through.
If i remember correctly SQL Server disables remote connections by default.
Please check whether remote connections are enabled and enable them if not:
RMB on Server in Management Studio Object Explorer -> Properties -> Connections -> Allow remote connections...
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.