“ERROR: Machine is offline or invalid” in adsysdis.log and the SMS Executive service on the Site Server stops unexpectedly

I am trying to Active Directory System Discovery but when it does the SMS Executive service on my Site Server stops unexpectedly.

If I look the adsysdis.log I see the following lines repeated over and over again:

GetIPAddr – Host not found resolving FQDN “”.
GetIPAddr – Retry with system name “”…

ERROR: Machine is offline or invalid.

Why can’t I see resources I want to add to a SCCM 2012 Direct Membership Collection?

I am trying to add a resource to a ConfigMgr 2012 Collection based on a Direct Rule. However, the resource I want to add isn’t showing on the Select Resources page of the Create Direct Membership Rule Wizard.

Why is the “Replication Link Analyzer” button missing from the SCCM 2012 Console Ribbon/ right-click menu?

I am trying to run Replication Link Analyzer but I don’t see the Replication Link Analyzer button on the Ribbon. If I also right-click on a Site/ Link under Database Replication most of the options (including Replication Link Analyzer), aren’t there, all I see is the following:

• Link Properties
• Parent Database Properties
• Child Database Properties

“GetDPLocations failed with error 0x80072efd” when trying to install the SCCM 2012 Client

I am trying to install the ConfigMgr 2012 Client on some machines but it’s failing for ALL the Clients on the subnet. If I look ccm.log it doesn’t shows any errors.

However, in ccmsetup.log I see the following:

GetDPLocations failed with error 0x80072efd

Why can’t I remove the SMS Provider?

I am trying to uninstall the SMS Provider on a server but SCCM won’t let me.

“MP Control Manager detected management point is not responding to HTTP requests. The HTTP status code and text is 401, Unauthorized”

I have a Management Point that when I view it in Site Status in the Console (Monitoring\Overview\System Status\Site Status) it’s Status is showing as Critical. It is also reporting Error Status Message ID 5436.

If I look in mpcontrol.log I am seeing:

Call to HttpSendRequestSync failed for port 80 with status code 401, text: Unauthorized
Http test request failed, status code is 401, 'Unauthorized'.

I have tried all kinds of things such as removing and reinstalling the MP, running the prerequisite check for the MP to make sure I haven’t missed anything there, and even a Site Reset all without success.

How do I run the “mplist” test to check my SCCM Client can connect to a Management Point?

In this post we explain how to run the mplist test to verify your ConfigMgr Client can connect to a Management Point.

What is the “mplist” test for SCCM Management Points?

Wondering what the “mplist” test for ConfigMgr Management Point troubleshooting/ connectivity is for? Let us explain in the post.

What is the “mpcert” test for Management Points?

Wondering what the “mpcert” test for ConfigMgr Management Point troubleshooting/ connectivity is for? Let us explain in the post.

How do I run the “mpcert” test to check my SCCM Client can view its Management Point certificate?

In this post we explain how to run the mpcert test to verify your ConfigMgr Client can view a Management Points certificate.