When you have SQL server running in clustering and you changed any startup parameters, it is possible that SQL services will not run due to any incorrect parameter settings. As per Microsoft this is because the cluster service obtains an incorrect protocol setting from a cluster checkpoint when you start the SQL Server service.
In order to fix this issue you have to first remove the last check point by running this command (after making SQL server resource offline)
cluster res "SQL Server (Instancename)" /removecheck: "Software\Microsoft\Microsoft SQL Server\MSSQL.x\MSSQLSERVER
and then fix the startup parameters for all nodes and then run following commands
cluster res "SQL Server (Instancename)" /addcheck: "Software\Microsoft\Microsoft SQL Server\MSSQL.x\MSSQLSERVER"
Following is the Microsoft KB for more details.
