Hi everybody,
I'm trying to add a third server to my SharePoint 2013 farm.
Current farm has March 2021 SharePoint CU (2 servers): Windows Server 2008 R2, and Windows Server 2012.
Third Server is also Windows Server 2012 (I want to remove 2008 R2 after the process).
Both servers in farm are in March 2021 Sharepoint Server CU, also the third one.
When I try to add the third server. SharePoint PSCONFIG GUI tells me that March 2015 CU is missing at the third server.
How should I proceed?
Thank you very much. Kind regards,


