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We had similar situation in our company. Also unable with : .\MSSQLSERVER But (weird) : Those 3 do work : user ( "user" is my machine name) (local) . Bu videoyu bir oynatma listesine eklemek için oturum açın. The right-pane lists the connection protocols available. http://electrictricycle.net/sql-server/cannot-connect-to-instance-of-sql-server.html

and what If I choose "lala" as instance name ? That causes a problem for clients trying to connect. Then I installed WireShark (http://www.wireshark.org/) to view the actual connection details and found the router in question that was refusing to forward the request. Table of Contents Abstract Not included Gathering Information about the Instance of SQL ServerEnable ProtocolsTesting TCP/IP ConnectivityTesting a Local ConnectionOpening a Port in the FirewallTesting the ConnectionSee Also Gathering Information http://stackoverflow.com/questions/17029073/cannot-connect-to-sql-server-named-instance-from-another-sql-server

Cannot Connect To Sql Server A Network Related Or Instance-specific

Enable UDP, port 1434 trong file wall (if you using amazon EC2 or other service you need open port in their setting too) Restart sql and done share|improve this answer answered When SQL Server 2000 and SQL Server 2005 clients request SQL Server resources, the client network library sends a UDP message to the server using port 1434. Join them; it only takes a minute: Sign up Cannot connect remotely to a SQL Server named instance up vote 0 down vote favorite I have SQL Server 2008 installed on

Your network could allow either or both. The SQL Server Browser service was stopped and possibly disabled on the computer hosting the named instance. Privacy statement  © 2016 Microsoft. How To Ping Sql Server Instance From Command Prompt That was what I was hoping to find out.

asked 2 years ago viewed 2608 times active 2 years ago Visit Chat Related 1684Add a column, with a default value, to an existing table in SQL Server1165How to check if Cannot Connect To Sql Server Instance Browse other questions tagged sql-server connection or ask your own question. Best Regards, Chunsong Feng Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer http://stackoverflow.com/questions/29854614/cannot-connect-remotely-to-a-sql-server-named-instance Testing TCP/IP Connectivity Connecting to SQL Server by using TCP/IP requires that Windows can establish the connection.

It can be useful for troubleshooting, but you can’t use it to connect from another computer. Cannot Connect To Sql Server Instance Remotely Just use cliconfg.exe to create alias with tcp/ip protocol. up vote 0 down vote favorite For some reasons, I cannot connect to my SQL Server with full name + instance name (e.g. Positively!

Cannot Connect To Sql Server Instance

the installation process asked me for the desired instance name , so I wrote: MSSQLSERVER. Friday, April 06, 2012 - 9:59:17 AM - sda Back To Top We have a starnge situation -Windows 7 workstations CANNOT connect toa SQL2005 NAMED instance ON A cluster from SQL2005 Cannot Connect To Sql Server A Network Related Or Instance-specific Solutions? Can't Connect To Sql Server 2012 Chantouch Sek 6.130 görüntüleme 3:40 How to Enable Remote Connection to SQL Server is a Solution for Error:40 - Süre: 8:51.

For a named instance, use the IP address and the instance name in the format IP address backslash instance name, for example192.168.1.101\PAYROLLIf this doesn't work, then you probably have one of Get More Info To enable TCP, See theEnable Protocolssteps above. This will be really helpful. - Chintak. Yükleniyor... Çalışıyor... Sql Server Cannot Connect To Local

How to deal with a coworker that writes software to give him job security instead of solving problems? Brian Kelley Back To Top Standard warning applies... LAMLIH Imad 6.284 görüntüleme 2:28 Introduction to SQL Server Database Backup and Restore - Süre: 22:06. useful reference We have a previous thread about this which maight be helful to you, see: http://social.technet.microsoft.com/Forums/en/sqlkjmanageability/thread/e196df46-7a9b-41c5-bd1b-50e0996acb70.

You can force a TCP connection by specifyingtcp:before the name. Sql Server Cannot Connect To Server more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Linked 2 Sporadic SQL Connection Timeouts 0 How to configure multiple SQL Server instances on a Windows Server 2003 0 Error: 26-Error Locating Server/Instance Specified, working from one client but not

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Actually, when the client try to make connection to the server, it will perform the following steps: Send a UDP 1434 package to the server (SQL Server Browser Services is listening If you're a DBA, chances are you can check the SQL Server Browser service, and if so that's the first place to start. And it worked. Sql Server Named Instance Connection Problems Not the answer you're looking for?

If your network is properly configured you will receive a response such asReply from .If you can successfully ping the server computer by IP address butreceive an error such as Why is this C++ code faster than my hand-written assembly for testing the Collatz conjecture? How small could an animal be before it is consciously aware of the effects of quantum mechanics? http://electrictricycle.net/sql-server/cannot-connect-to-sql-server-instance.html And Aaron Bertrand's blog hasa very extensive list of error codes athttp://www2.sqlblog.com/blogs/aaron_bertrand/archive/2011/01/14/sql-server-v-next-denali-additional-states-for-error-18456.aspx.

Using Configuration Manager, in the leftpane selectSQL Server Services. Monday, January 31, 2011 10:22 AM Reply | Quote Answers 0 Sign in to vote Ok, so what actual error you are getting? If I receive written permission to use content from a paper without citing, is it plagiarism? Browser Artical On startup, SQL Server Browser starts and claims UDP port 1434.

For example: Connecting to: Type: Example: Default instance tcp: The computer name tcp:ACCNT27 Named Instance tcp: The computer name/instance name tcp:ACCNT27\PAYROLL If you can connect with sharedmemory butnot TCP, then you If you receive an error such as "Destination host unreachable." or "Request timed out." you might have old (stale) name resolution information cached on the client computer. Can you confirm if your VPN issue might still be relevant? more hot questions question feed lang-sql about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation

Has swap space a file system? Best Regards, Chunsong Feng Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer Management Studio might not have been installed when you installed the Database Engine. If so, then define them the same on SQLB also.

Then the client would have to have a server on udp 1434 and unravel the responses?! On the client computer, using SQL Server Management Studio, attempt to connect using the IP Address and the TCP port number in the format IP address comma port number. At this point I don't want to ignore any possibility! –user1839820 Jun 10 '13 at 20:35 1 The VPN was just my example of a system that was preventing UDP Tuesday, May 28, 2013 - 1:00:00 PM - Carter Back To Top Thanks for this post, very helpful!

The UDP port 1434 information is being blocked by a router. The computer hosting the named instance SQL2008R2 will respond back, also sending a message via UDP to port 1434 for the client like so: Note that the SQL Server Browser service If you changed the enabled setting for anyprotocol youmust restart the Database Engine. Even though the firewall was turned off at both the locations we found that a router in the SQLB data center was actively blocking UDP 1434.