After installing 10.2.3 I received the following error when selecting the Performance View option on the Spectrum Control Panel, "SPC-OCC-10638: You do not have access to this server." The .hostrc file contains a + and the spectrum user is in the Spectrum database.
The user logged in to windows as Spectrum instead of spectrum as the install user shows. Capitalization in of username does not matter for Windows but with Spectrum it does.
Log out of the Windows server and back in as user spectrum (lowercase s) resolved the issue