Are you trying to upgrade to the latest version? If so why are you installing 11.5.2 just go to the next version.
For you error try uninstalling the "Microsoft SQL Server 2012 Native Client" and see if that helps.
During the install it prompts for two different accounts if I recall correctly, one to connect and maintain the database and then the next is the SolarWinds Orion account. I'd double check to make sure you are not mixing these up.
I had them messed up on a demo and ended up resetting the Orion account password from SQL Server Manager and then it let me proceed without issue.
Hope this helps.
So the fix here was to uninstall both Microsoft SQL Server Management Objects 64-bit and 32-bit .. then the install does it and completes.
I'm also curious, why go to 11.5.2 rather than the latest?