Cannot Connect To SQL Instance Without Port Information
Jul 5, 2007
Hi all,
I'm having some trouble with connecting to SQL server instance lately
without adding a port number. I used to be able to always connect to
instance without having to input SQLSERVER,portnumber. However now
this is not the case. I doing this through an ADO connection object,
and creating the connection string. Does anyone know if there was a
recent Microsoft update or patch that would've cause this to stop
allowing me to connect to a SQL instance without having to put in the
port information? Thanks.
I'm trying to configure a named instances of SQL Server 2012 SP2 to have specific IP addresses and listen to that IP on port 1433. Alongside this, I have the default instance running on a different IP and listening to that on port 1433.I've managed to get them configured so that they are reachable using the IP, and looking at the log for each they are listening correctly on that IP on port 1433; in addition, the default instance connects fine using the SERVERNAME.However, when I try and connect to the named instance using the SERVERNAME/INSTANCENAME syntax, I receive the following:-
"Cannot connect to SERVERINSTANCE. Instance failure. (System.Data)"
Configuration for the TCP/IP protocol for that instance is as follows:-
Protocol Tab
Enabled= Yes Keep Alive = 30000 Listen All = No
IP addresses Tab
IP1 Active = Yes Enabled = Yes IP Address = 10.1.1.1 TCP Dynamic Ports = 0 TCP Port = 1433
[code]...
The SQL Browser service is running and prior to switching off Listen To All, I could connect to the instance remotely using the instance name.
Thanks for Microsoft's Windows XP Service Pack 2 and Windows Server 2003 that make the security much stronger. However, besides the invisible benefit so far, I have become the victim of this security policy.
I have several named instances of SQL 7/2000 installed in my machine. They are not visible out of the Microsoft new fire wall. I need to access the instances from outside the fire wall, but I don't know which port I should open for the instances.
From SQL online, the default instance of SQL server is connected through TCP/IP by default port 1433. I could successful open that port and made the default instance visible to outside. However, the port 1433 doesn't work for the named instances. SQL online said, the port for named instance is dynamically (by default) chosen the first time the instance is started. So, actually, I have no way to know the port.
Is there anyway that I can check the database or somewhere to get the port that is used by the named instance?
I've two instances(Default, Named[dynamicsFINANCE]) running on SQL server 2014. However, when I try to connect to named instance say (dynamicsFINANCE) using SQL authentication from local SSMS, I get below 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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)
I assigned a static port number to the named instance [dynamicsFINANCE] 1450. I also setup the firewall rule to allow access to Port 1450.
I have opened up a port on a remote SQL instance and can see that the port is LISTENING when using the PortQry tool. I have also set the TCP port in the TCP/IP properties in the IPAll section for that instance, yet I am unable to connect and get an error of
Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake failed or the server was unable to respond back in time. The duration spent while attempting to connect to this server was - [Pre-Login] initialization=1; handshake=14998; (.Net SqlClient Data Provider)
I have done this on other instances, although they were default instances, and it has always worked fine.
I installed a default SQL Server 2012 instance on Windows Server 2012.I enabled the SQL Browser and changed the TCP port of the instance to 1435. I changed port 1433 to 1435 I was able to connect to the instance using SSMS on another server. Now I have to enter Servername,1435 to make a connection.Why does the SQL Browser not resolve the servername to the right IP address and port 1435? Why am I not able to make a connection when I enter the servername or <servername>MSSQLSERVER? Is a SQL Browser only resolving named instances?This works fine for a named instance. Is there something special about default instances or the SQL Browser?
Having problems running the BPA for 2012. We setup using a clustered environment, SQL Server installed using default instance, and a static port not 1433. When I try to run the BPA using the instance name it says it doesn't exist, and won't let me add a port number. However, if I use MSSQLSERVER as the instance name it runs with no port specified and returns results. I assume that it doesn't require a port because the default instance would pull from the Browser Service and the using MSSQLSERVER is the same as running the default on a standalone server. Are those assumptions correct?
I have TWO named SQL Server instances (on the same machine) and I need to know the port of each of them, how can I do that? Is it write to check the following:
Which one to take: "TCP Dynamic Ports" or "TCP Port"? and what is the difference between them anyways?Â
Can the two instances (or more)Â on the same machine use the same port?!
I have a 3 node cluster on which I have installed SSAS as it's own insntance. I have created this as a named instance and can connect to it by serverinstance if I'm on the server itself. However from my desktop I get the error saying instance was not found on server name.
I have defined an alternate port and setup firewall rules and can connect via server:port but not serverinstance. Prior to making this change SSAS was running on default port of 2383 and I could connect just by servername.
I have read many articles for previous versions saying that clustered SSAS will always use 2383 and that you must connect just using servername. However and this is were it gets strange. I have a 2 node UAT cluster with SSAS setup exactly the same way I've described above and I can connect from my desktop as serverinstance.
Should I be able to connect as serverinstances for a named clustered instance in 2012 ?
I changed the Port of my named instance to use static port but still error log is giving two values ,why??
spid15sServer is listening on [ 'any' <ipv6> 50152]. spid15sServer is listening on [ 'any' <ipv4> 50152]. ServerServer is listening on [ ::1 <ipv6> 57518]. ServerServer is listening on [ 127.0.0.1 <ipv4> 57518].
Hi all. I have ran into a annoying situatin on sql cluster. Config is: w2k3 EE x64 r2 - two nodes sql 2005 x64 standart v2153 2instances, active-active cluster. While changing tcp port configuration of one instance (using configuration manager) I have acidentaly created that setting: - All IP dynamic port and All IP port was set to same number while separate IPs have enabled dynamic ports and does not have static port set. This situation leads to unability of starting the instance anymore. There is no need wide explanation, its quite clear - while starting instace, it was configured with static port and with dynamic port with the same number, so port conflict error takes place. Problem was how to escape from this situation. On non clustered sql is quite easy, because these settings are stored in registry and also can be changed thorough Configuration manager, easy solution. Nor on the cluster.. Modifying the registry even on both nodes was unefective, every try to start instance fails with port conflict error and bad config was saved to registry again. I wasnt able to find where this config resides and change it to corect values. I have revealed only that it is not stored in instance master DB (restoring it from backup). Looks like its held somehow by cluster service itself, but I didnt find where it should be and how to edit it. So the last possible option take place (time was against me) - reinstalation of whole clustered instance. Nice example of how one click can create you a 2 days of work... Iam still interested if there is a smooth and easy way out of this situatin:-) So if anyone knows..... If there is not, I realy warn everybody.
I have a named sql instance on SQL 2012. The issue is that the clients is having problem connecting to it when the firewall is on, this is not consistent. The connection is fine when I disabled the firewall. When I turned the Windows firewall back on, it will work for awhile and it fails. I checked the SQL configuration manager and saw that a dynamic port is assigned to the named instance. I did put that in the firewall rule and unblock it. I also put TCP 1433 and 1434 as well as the browser service port, TCPUDP 2382 and it still didn't work.What is the best way to determine what port does the named instance are listening?
Hi, I hope someone can help me! I changed the TCP port that the default instance of SQL 2005 x64 SP1 is listening on and now SQL server won't start as the port is being used - no problem I say to myself, I'll just change it again, however I can't!
My problem is that I can not change the TCP Port back again using Configuration Manager - no matter what values I put in, after a restart of the instance it comes up with this in the IP Addresses tab for TCP/IP Properties and SQL Server won't start:
IP1 Active Yes Enabled No IP Address aaa.bbb.ccc.111 TCP Dynamic Ports TCP Port 0
IP2 Active Yes Enabled No IP Address aaa.bbb.ccc.222 TCP Dynamic Ports TCP Port 0
IP3 Active Yes Enabled No IP Address aaa.bbb.ccc.333 TCP Dynamic Ports TCP Port 0
IP4 Active Yes Enabled No IP Address 10.1.1.1 TCP Dynamic Ports TCP Port 0
IP5 Active Yes Enabled No IP Address 127.0.0.1 TCP Dynamic Ports TCP Port 0
IPALL TCP Dynamic Ports 2020 TCP Port 2020
Interestingly, the ip address that the server is listening on aaa.bbb.ccc.444 is not reported in the list of IP addresses in the configuration manager for this instance, yet it is when I view the available IP addresses for the other two instances - is this significant?
I have tried failing to the other node, changing it there, changing it at the console and also while logged onto the the virtual machine remote desktop, rebooting both nodes, etc, etc. There are two other instances on this cluster that are still working fine but I hvae not attempted to change the TCP ports they listen on.
I used the same method to change this default instance as I did for a named instance on a similarly configured cluster and it worked fine. How to fix this?
Regards, Mike
2007-02-27 12:03:17.69 Server Server is listening on [ aaa.bbb.ccc.444<ipv4> 2020]. 2007-02-27 12:03:17.71 spid9s Starting up database 'tempdb'. 2007-02-27 12:03:17.72 Server Error: 26023, Severity: 16, State: 1. 2007-02-27 12:03:17.72 Server Server TCP provider failed to listen on [ aaa.bbb.ccc.444<ipv4> 2020]. Tcp port is already in use. 2007-02-27 12:03:17.75 Server Error: 17182, Severity: 16, State: 1. 2007-02-27 12:03:17.75 Server TDSSNIClient initialization failed with error 0x2740, status code 0xa. 2007-02-27 12:03:17.75 Server Error: 17182, Severity: 16, State: 1. 2007-02-27 12:03:17.75 Server TDSSNIClient initialization failed with error 0x2740, status code 0x1. 2007-02-27 12:03:17.75 Server Error: 17826, Severity: 18, State: 3. 2007-02-27 12:03:17.75 Server Could not start the network library because of an internal error in the network library. To determine the cause, review the errors immediately preceding this one in the error log. 2007-02-27 12:03:17.77 Server Error: 17120, Severity: 16, State: 1. 2007-02-27 12:03:17.77 Server SQL Server could not spawn FRunCM thread. Check the SQL Server error log and the Windows event logs for information about possible related problems.
connecting to a SQL Server Instance. I have a SQL server DB on a server having an Instance not running on the default port. Let's say ServerAInstanceA has the services exposed on Port 12345. When I'm trying to connect to ServerAInstanceA without specifying the port number, while I can connect from one client machine (ClientA), I am unable to connect from a different client machine (ClientB).On a side note, when I provide the port number, I can connect both from clients A and B. My question is, when I do not provide the port number, why is one client machine able to connect while the other isn't?
I have a new named instance (SQL Server 2005 x64 SP2 (Build 3159) Developer edition) setup with dynamic port selection. A default instance was also running on the server prior to the named instance setup.
SQL Server Browser service is running. Remote connections are configured on the named instance. But still remote clients can only connect when the port number is specified after the instance name (servernameinstancename,9999). Without the port number, "error 26 - Error locating Server/instance specified" is thrown.
Doesn't the SQL Server Browser service eliminate the need for clients to specify the port number? What am I missing?
So, I have 2 laptops, both with standalone SQL Server 2012 Management Studio.
laptop 1 can connect to my remote server on xxx.xxx.xxx.xxx,1433 laptop 2 cannot connect through management studio - but can connect directly from the development website on this machine.
I get error 18456, cannot connect to server and login failed for 'user'
I've been running some tests with a 3rd party application during the last few days, but the ODBC doesn´t seem to be working well.
The ODBCs are configured to go through specific ports, since there's a firewall between the server (production area) and the database (which is located in the dev area). If i press the TEST CONFIGURATION button after i configured the ODBCs, the test is successful, and the log file of the firewall monitor shows that the server is connecting through the designated ports.
But when i run the 3rd party application, the queries fail, showing an error that says "The server cannot be found or you don´t have access", after this error, another one appears, saying something like "Connection().opened..." - unfortunately I don't have the actual text, I'll try to post it as soon as i get them .
Just to make sure that the 3rd party app is doing its job, dev team wrote a simple VB6 app to query the database, and it shows the same error.
Both apps are running well in the dev environment, since dev machines don't have to go through the firewall, and both apps are using the ODBC configured in the same way as the server. I could think that the problem is the firewall, but the firewall logs show that the production server is trying to use ports 1433, 1434, 445 and 139, and there isn´t a single entry showing activity for the ports specified on the ODBCs configuration.
The database server is running SQL Server 2000, the dev pcs are running Windows 2000, and the ODBC driver version is 2000.85.1117.00.
On the Production environment the server that is trying to access the database is running Windows 2003 Server Ent Ed. SP 1 , and the ODBC driver version is 2000.86.1830.00
I hope some one outthere has any ideas to solve this problem, or at least any idea of what is causing this error, because i´m running out of them.
I have a SQL server database that I am trying to connect to from VS2005 in the Server Explorer. I am not using the standard port for my SQL server listening port and I don't see where I can tell the Server Explorer to use a different port? Can someone point me in the right direction for connecting to my database? Thanks.
Version: SQL SERVER 2012 enterprise edition and SP2.
Due to one of the security reason, I have changed default port 1433 to another port number in configuration manger tools->protocols for MSSQLSERVER->TCP/IP --> IP ALL section mention another port number.
After restarted service, SQL SSMS able to connect server itself and new port number also LISTENING.
But SQL client SSMS not connected to one of the PC side after changing default port.
In Management Studio i highlight my query and then click on 'Analyse query in Database Engine Advisor' but i get the following error message: "Failed to connect to an IPC Port: The system cannot find the file specified". Seems like if I reboot my computer it works one time then get the same error on the second time.I'm running developer edition with service pack 2.
How do I connect to an instance of a database which is in a web application (not published) with SQL server management studio express? I seem to be able to connect to the data base created .......but not after i have added it into my web app? does that make sense
Testing a client application which needs to connect to a Analysis Services DB on a different LAN. The application needs to resolve a <server_name><instance_name> to connect however we keep obtain an error message such as "Errors in the OLE DB provider. Could not connect to the redirector. Ensure that the SQLBrowser service is running"
Using ODBC we can connect to the SQL Engine on the SQL Server on the remote LAN and all accounts used are correct, to my knowledge I have installed OLE DB Provider for Analysis Services 9.0 but configured nothing. Can anyone explain where I can set up a connection to Analysis Sevices via OLE DB, ODBC or any other method required to allow our client to connect. So far I'm unable to see any OLAP connection methods in ODBC, only SQL Server or Native SQL.
Hello guys,I've got some troubles , by attempting to connect the SQL Server database to my server.I've got this error message on the SQL Configuration Manager (when i tried to start SQL Server which was stopped) " The request failed or the service did not respond in a timely fashion. Consult the event log or the other applicable error logs for details " I found that error log : 2007-12-18 19:36:12.20 Server Server process ID is 5080. 2007-12-18 19:36:12.20 Server Logging SQL Server messages in file 'c:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG'. 2007-12-18 19:36:12.20 Server This instance of SQL Server last reported using a process ID of 1180 at 18/12/2007 19:12:20 (local) 18/12/2007 19:12:20 (UTC). This is an informational message only; no user action is required. 2007-12-18 19:36:12.20 Server Registry startup parameters: 2007-12-18 19:36:12.20 Server -d c:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAmaster.mdf 2007-12-18 19:36:12.20 Server -e c:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG 2007-12-18 19:36:12.20 Server -l c:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAmastlog.ldf 2007-12-18 19:36:12.20 Server SQL Server is starting at normal priority base (=7). This is an informational message only. No user action is required. 2007-12-18 19:36:12.20 Server Detected 2 CPUs. This is an informational message; no user action is required. 2007-12-18 19:36:12.40 Server Using dynamic lock allocation. Initial allocation of 2500 Lock blocks and 5000 Lock Owner blocks per node. This is an informational message only. No user action is required. 2007-12-18 19:36:12.42 Server Database Mirroring Transport is disabled in the endpoint configuration. 2007-12-18 19:36:12.43 spid4s Starting up database 'master'. 2007-12-18 19:36:12.50 spid4s Error: 9003, Severity: 20, State: 1. 2007-12-18 19:36:12.50 spid4s The log scan number (228:88:1) passed to log scan in database 'master' is not valid. This error may indicate data corruption or that the log file (.ldf) does not match the data file (.mdf). If this error occurred during replication, re-create the publication. Otherwise, restore from backup if the problem results in a failure during startup. 2007-12-18 19:36:12.50 spid4s Cannot recover the master database. SQL Server is unable to run. Restore master from a full backup, repair it, or rebuild it. For more information about how to rebuild the master database, see SQL Server Books Online.
I have just recently installed MS SQL Server 2005 Developer edition. I have installed SP2.
Today when I try to connect via Management Studio, I get the following error: 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: 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 connected host has failed to respond.) (.Net SqlClient Data Provider)
I installed it as a default instance.
I recently added a login with dbo privileges. I have tried logging in with that sql account and also with windows authentication to no avail.
Generally I install SQL 2005 using the Default Instance Name. When asked for the SQL server (setting up the ODBC connection) I simply enter the name of the server.
I now have installed a new SQL 2005 server, and I gave it a unique Instance Name.
When asked for the SQL server (setting up the ODBC connection) what name do I enter? I assume it has to be more than the server name as the SQL server is unique. What format do I use to enter the unique name of the SQL db?
Yesterday I was able to connect to the server, and now it's telling me I can't log in via the SQL Server manager.
the database has a red stop signal on it, and I'm not sure what caused this.
I did install Windows XP IIS (Internet Information Services) yesterday. Could this have caused this?
How do I get the database started again?
The error I'm getting during login attempt is this...
===================================
Cannot connect to <MYSERVER>.
===================================
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (.Net SqlClient Data Provider)
------------------------------ For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476
OS: Windows 2003 Server Enterprise Edition SQL Server: SQL Server 2005 Enterprise Edition (2 instances) SQL Server : SQL Server 2000 Enterprise Edition ( 1 instance)
Problem: 2nd instance of sql server 2005 installed and service pack 2 applied when using SS Mangement Studio I get the error:
Cannot connect to <ServerName>MSSQL2K5_2. =================================== 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: 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 connected host has failed to respond.) (.Net SqlClient Data Provider) ------------------------------ For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=10060&LinkId=20476 ------------------------------ Error Number: 10060 Severity: 20 State: 0
------------------------------ Program Location: at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.ObjectExplorer.ValidateConnection(UIConnectionInfo ci, IServerType server) at Microsoft.SqlServer.Management.UI.ConnectionDlg.Connector.ConnectionThreadUser()
Open MyComputer Services & Applicaitons | Services SQL SERVER (<SERVER NAME> MSSQL2K5) STARTED SQL SERVER (<SERVER NAME> MSSQL2K5_2) STARTED SQL AGENT (<SERVER NAME> MSSQL2K5) STARTED SQL AGENT (<SERVER NAME> MSSQL2K5_2) NOT STARTED
Application Event Log
SQLServerAgent could not be started (reason: Unable to connect to server 'BLUESTONEMSSQL2K5_2'; SQLServerAgent cannot start).
SOURCE: MSSQL%MSSQL2K5_2
Server is listening on [ 'any' <ipv4> 2777].
DAC is listening on [ 'any' <ipv4> 2778]
<SQL ERROR LOG> AND <APPLICATION EVENT LOG ENTRY>
The SQL Network Interface library could not register the Service Principal Name (SPN) for the SQL Server service.
Error: 0x54b, state: 3.
Failure to register an SPN may cause integrated authentication to fall back to NTLM instead of Kerberos.
This is an informational message.
Further action is only required if Kerberos authentication is required by authentication policies.
CONFIGUATION MANGER Alias is configured with correct port. (2777) Protocol TCP/IP
When I try to connect to a default Express instance in Management Studio at the machine (Windows XP SP2) where the instance is installed, I'm getting the following error:
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server)
What does provider: SQL Network Interfaces mean? Does it mean the Shared Memory, Named Pipes and TCP/IP?
Additional information: 1. The following Network Protocols are enabled: Shared Memory, Named Pipes, TCP/IP thru Configuration Manager 2. SQL Server Express default instance is running using NT AUTHORITYNetworkService. 3. SQL Server Browser service is not running. I believe this is not needed unless I want to connect to the instance from another machine. 4. Has tried to disable Windows Firewall but I believe it should not be matter in this particular case since this is within the same machine. 5. Can connect to the instance in ODBC Administrator using System DSN thru Named Pipes or TCP/IP.
Can such error caused by not having sufficient memory so the system is running kind of slow?
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476
