I have SCCM 1802 installed and noticed recently new clients not connecting and log errors such as "ccm_system_windowsauth/request failed with 0x87d00231" and "ERROR: URL=http://--------/ccm_system_windowsauth/request, Port=80, Options=480, Code=12030, Text=ERROR_WINHTTP_CONNECTION_ERROR"
I found that by enabling anonymous authentication for SMS_MP_WindowsAuth and CCM_System_WindowsAuth in IIS this error went away and clients could connect again. Obviously this is only a workaround as the sites _WindowsAuth should be set to use Windows Authentication and the CCM_System and SMS_MP sites are the ones set to use anonymous.
What I'm wondering is why is this the case? I'm assuming I've got an error somewhere in my configuration but I don't know where.
In terms of my other IIS configuration bits; the app pools for the _WindowsAuth and anonymous auth sites are all set to use LocalService for their identity.
I found that by enabling anonymous authentication for SMS_MP_WindowsAuth and CCM_System_WindowsAuth in IIS this error went away and clients could connect again. Obviously this is only a workaround as the sites _WindowsAuth should be set to use Windows Authentication and the CCM_System and SMS_MP sites are the ones set to use anonymous.
What I'm wondering is why is this the case? I'm assuming I've got an error somewhere in my configuration but I don't know where.
In terms of my other IIS configuration bits; the app pools for the _WindowsAuth and anonymous auth sites are all set to use LocalService for their identity.