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SQL Server 2008 R2 Express

I just downloaded Sql server 2008 r2 express and upgraded from sql server 2005 express.

For some reason, I can't connect to the sqlexpress server name on my local machine (laptop).  Here is the error I get:

sqlexpress error
Thanks for any help you can provide.
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2 Solutions
Guy Hengel [angelIII / a3]Billing EngineerCommented:
This happens when the SQL client cannot connect to the SQL server. The common reason I've seen are:

1. SQL is not started. This is quite common actually. ;)
2. Invalid SQL server name.
3. Invalid SQL instance name.
If you're connecting remotely, you would also want to:

1. Identify which port SQL is running on.
2. Open that port in the firewall(s) to permit traffic from the client IP.
3. Enable TCP/IP protocol in SQL.

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