I have a 2 node cluster and were supposed to run the upgrade advisor against passive node first, but how can you when the passive node sql service is not running? When I run the upgrade advisor I get the below error. Appreciate the help.Unable to connect to server. Reason: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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