Symptoms
When remote admin connections are enabled and IPV6 is disabled on the host in Microsoft SQL Server 2019 or 2017 on Linux, you notice that SQL Server tries to listen on IPV6 but does not start.
DateTime Server Error: 26024, Severity: 16, State: 1.
DateTime Server Server failed to listen on 'any' <ipv6> 1434. Error: 0x2742. To proceed, notify your system administrator.
DateTime Server Dedicated admin connection support was not started because of error 0x2742, status code: 0x1. This error typically indicates a socket-based error, such as a port already in use.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Resolution
This issue is fixed in the following cumulative updates for SQL Server:
Cumulative Update 7 for SQL Server 2019
Cumulative Update 22 for SQL Server 2017
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Latest cumulative update for SQL Server 2019
Latest cumulative update for SQL Server 2017
References
Learn about the terminology that Microsoft uses to describe software updates.
