Microsoft Sql Server Error 18461
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Microsoft Sql Server 2012 Error 18461
and Disaster Recovery Question 0 Sign in to vote Hello: Having an error 18461 sql server 2008 r2 extremely frustrating issue trying to connect to SQL once I've done the NET START MSSQL$SQL_DEV /c /m /T3608. Briefly: SQL -m"microsoft sql server management studio - query" 2K and 2K5 named instances running on same DEV box. Can't open admin:
Login Failed For User . Only Administrators May Connect At This Time
Only one administrator can connect at this time. (Microsoft SQL Server, Error: 18461) This happens regardless of credentials supplied (my AD acct (local admin on box), AD acct running SQL services or sa). Object Explorer is closed, remote connections disabled in SS Surface Area Config. I open SSMS and make no attempt to connect to server. Choose File >New > Query with Current Connection.
Microsoft Sql Server 2008 R2 Error 18461
In dialogue box, I attemp to utilize DAC and get the above error. In DOS prompt where I issued the single user mode startup cmd, try to use sqlcmd to grab DAC session and receive the following error: SQL Network Interfaces: An error occurred while obtaining the dedicated administrator connection (DAC) port. Make sure that SQL Browser is running, or check the error log for the port number [xFFFFFFFF]. Sqlcmd: Error: Microsoft SQL Native Client : 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.. So, no matter what method I use, I've managed to disable ALL access to the instance, despite the tips I've seen here and on Google. I need to move the system databases to new disk volume, but cannot do so until I can open a connection to the instance once I've put it in single user mode. Looking in the SQL Srvr log following startup in single user mode I see the following: MessageServer is listening on [ 'any'
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company sql server is in single user mode Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags
Sql Server Single User Mode To Multi User Mode
Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it sql remove single user mode only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Can't login to SQL Server in Single User mode https://social.msdn.microsoft.com/Forums/sqlserver/en-US/17c2744c-2e18-45c8-8b88-0e0b5db6461c/cant-access-sqlserver-in-single-user-mode?forum=sqldisasterrecovery up vote 5 down vote favorite 3 I've been trying all sorts of different combinations of startup flags to SQL Server 2008 R2 Express and I can not get past this error: Login failed for user 'LOCALSERVER\Administrator'. Reason: Server is in single user mode. Only one administrator can connect at this time. (Microsoft SQL Server, Error: 18461) I've tried starting it up in Single User mode by both -m"SQLCMD" and -m"sqlcmd" and Iv'e even tried http://serverfault.com/questions/338290/cant-login-to-sql-server-in-single-user-mode to start it up with -m"Microsoft SQL Server Management Studio - Query" and connecting with the appropriate clients I ALWAYS get this error. I'm 99% sure that nothing else is stealing my connection and when connecting with SSMS I make sure to do the "new query-connect` method to ensure it only uses 1 connection. Has anyone else had this problem? How do I fix it and login? sql-server login sql-server-2008-r2 share|improve this question asked Dec 6 '11 at 20:01 Earlz 5025824 add a comment| 3 Answers 3 active oldest votes up vote 7 down vote Here's a solution I just found to this old issue: Stop all SQL services Start with -m Run MSSQL Management Studio As administrator If not started as administrator (as I wasn't), then you'll receive the generic an admin is already connect. Instead of saying you can't connect because you aren't an administrator. Another confusing error from Microsoft. I suppose the same issue will exist with a sqlcmd too Regards Liam share|improve this answer answered Aug 19 '14 at 14:38 Liam Wheldon 7315 2 Running SSMS as Administrator is quite an important point. It wasn't working for me without that. –MrEdmundo Oct 20 '14 at 12:38 add a comment| up vote 4 down vote Despite Microsoft saying otherwise you shouldn't quote after the -m. So for SQLCMD, yo
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business http://dba.stackexchange.com/questions/1897/cant-login-to-sql-server-2008-when-running-single-user-mode Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users http://www.practicalsqldba.com/2012/08/sql-server-lost-all-administrator.html Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise sql server to the top Can't Login to SQL Server 2008 when running single user mode up vote 5 down vote favorite I'm following the MS documentation here to migrate logins from one instance of SQL Server to another as part of the process described here. This involves putting the server into single user mode (which I've done) and then running scripts etc. However, after restarting in single-user mode (with only the SqlServer service running) I am unable microsoft sql server to log-in using either my Windows account or sa credentials. I get the error: Failed to connect to
sa Account Password What will happen if you lost all your administrator account by mistake ? As per the best practice you have disabled the sa login. Those who had login with sysadmin rights left the company or not able to remember their password. Now you do not have any login with sysadmin rights. How do you get the administrative rights back? I had the same kind of scenario on a server which we use very rarely. Later we realized that we lost the administrative rights on that instance and we did not had any idea to get back the sysadmin rights. The only option was destroy the instance and rebuild it.ButMicrosoft thought about this scenario and kept an option to recover the sysadmin rights. Let us discuss this in detail through this post. How it works To solve this issue, we should know two sql server start up parameter -f Starts an instance of SQL Server with minimal configuration. This is useful if the setting of a configuration value (for example, over-committing memory) has prevented the server from starting. Starting SQL Server in minimal configuration mode places SQL Server in single-user mode. -m Starts an instance of SQL Server in single-user mode. When you start an instance of SQL Server in single-user mode, only a single user can connect, and the CHECKPOINT process is not started. CHECKPOINT guarantees that completed transactions are regularly written from the disk cache to the database device. Typically, this option is used if you experience problems with system databases that should be repaired. Enables the sp_configure allow updates option. By default, allow updates is disabled. Starting SQL Server in single-user mode enables any member of the computer's local Administrators group to connect to the instance of SQL Server as a member of the sysadmin fixed server role. When we start SQL server in single user mode, it is very common that application which using this server might take the connection and you will not get the connection. To avoid this situation there is an option to give the application name along with the start up parameter. For example, -mSQLCMD will restrict the connection o