SQL cannot connect, general view the following issues can be resolved.
1.SQL Service is started
2. Network connection port (1433) is open
3. Database roles for logged-in users
Above cannot be resolved, Progress view Event Viewer
If you are updating SQL, the following issues occur:
Event Type: Information
Event Source: Mssqlserver/msde
Event Type: None
Event id:5400
Date: 2006-8-13
Event: 8:24:25
Users: N/A
Computer: LIUZJ
Describe:
The version of Microsoft SQL Server 2000 or Microsoft SQL Server 2000 Desktop Engine (also called MSDE) that you are running contains a known vulnerability when used with this version of Windows. To reduce computer vulnerabilities from specific virus attacks, you should disable Microsoft SQL Server 2000, MSDE (or concurrent) TCP/IP and UDP network ports. To enable these ports, you must install the hotfix from Http://www.microsoft.com/sql/downloads/default.asp or the latest service PA for Microsoft SQL Server 2000 or MSDE Ck.
For more information, see the Help and Support Center in http://go.microsoft.com/fwlink/events.asp.
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