Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

in the Console , SQL Server Configuration Manager

I get error 10048 when start sql service

and this in event history:

The SQL server service terminated with server-specific error. Only one usage of each socket (protcol/network address/port) is normall permitted. Any idea howto fix this ? Port set is the default 1433... If this is turned off, which is default of course, SQL service starts like a champ. I have done this config many times on other servers with no problem.

share|improve this question
Do you have other instances of SQL installed on this server? Is there another process using port 1433? Run netstat -a -n -o from a command prompt and look for port 1433. If you find it then match up the PID listed with Task Manager and see what process is using port 1433. – joeqwerty Oct 26 '12 at 21:33

Sounds like there's something else already running on TCP port 1433. Stop the SQL Server. Then from a command prompt run

netstat -a -b

This will show you all the TCP ports which are in use and the name of the application which is using it. Find the application which is using TCP port 1433 and change that application to use a different port number.

share|improve this answer
up vote 0 down vote accepted

Figured it out. Right clicking the TCP/IP option there is an option to set 'Listeners' to all. Which is default, I changed this 'no', and it started so something must be up with my interfaces...

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.