Solved

Unable to Connect after SQL 2008 Installation

Posted on 2010-08-23
3
755 Views
Last Modified: 2012-05-10
I have just installed this New SQL Server 2008 Ent on  Windows 2008 and Applied SP1.

I get this strange error in the SQL Error log and event Viewer and was unable to connect:

Could not connect because the maximum number of '1' dedicated administrator connections already exists. Before a new connection can be made, the existing dedicated administrator connection must be dropped, either by logging off or ending the process.

I checked that all the network  protocols are enabled
0
Comment
Question by:dba2dba
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 250 total points
ID: 33500578
general explanations:
http://www.sql-server-performance.com/articles/dba/Dedicated_Administrator_Connection_in_SQL_Server_p2.aspx

so, you somehow have connected using a DAC already, and cannot connect a second time.
double-check the connection screens...
0
 
LVL 30

Assisted Solution

by:Brad Howe
Brad Howe earned 250 total points
ID: 33500759
Hi,

Did you set maximum user connections?.

If yes, if you have configured the server for dedicated admin connection you can use that to change the max user connections to a higer number.

First go to services and stop Service named SQL Server (Default is MSSQLSERVER).
Now Start both SQL Server (MSSQLSERVER) and SQL Server Agent (MSSQLSERVER)
Now connect to your database
Now increase the number of allowed connections in SERVER PROPERTIES (Connections) - Set this to '0'.

Cheers,
Hades666
0
 
LVL 4

Expert Comment

by:GuyHochman
ID: 33509722
Hi

Try to stop and start your new SQL SERER
good luck,

Guy Hochman
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article we will get to know that how can we recover deleted data if it happens accidently. We really can recover deleted rows if we know the time when data is deleted by using the transaction log.
Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
Using examples as well as descriptions, and references to Books Online, show the documentation available for date manipulation functions and by using a select few of these functions, show how date based data can be manipulated with these functions.
Viewers will learn how to use the UPDATE and DELETE statements to change or remove existing data from their tables. Make a table: Update a specific column given a specific row using the UPDATE statement: Remove a set of values using the DELETE s…

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question