SCVMM2012R2 WinRM Error

My environment is the bottom of the W2012R2 hyper-v,3 platform made cluster, and then managed with SCVMM, recently mutated into this:

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It then discovers that the status of each Hyper-V host is incorrect:

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Error (20506)
Virtual Machine Manager cannot complete a Windows remote management (WinRM) request on computer ctu1-s-hypv-001.contoso.com.

Recommended action
Make sure that the Windows remote Management (WinRM) service and the Virtual Machine Manager Agent service are installed and running. If you have a firewall enabled on your computer, make sure you add the following firewall exception: a) Http/https port exception b) Scvmmagent program exception.

Don't know where the problem lies? Uninstalling the SCVMM agent to re-push the installation is still the problem.

Try

WINRM Quickconfig

and shut down all the server firewalls have tried,

The 5985 port of the Hyper-V host to telnet from SCVMM is pass.

Forcing the removal of hosts from SCVMM (without affecting Hyper-V Cluster) Uninstalls the vmmagent agent of the Hyper-V host, restarting the server or restarting the WRM service, and re-adding this cluster on SCVMM, all node problems remain the same.

Not even.

Finally find out the problem is now:

The credential assignment (Computer Configuration-Administrative Templates-System-credential Assignment) setting above the SCVMM Management Server is now modified to not configured. By default, this setting is enabled, and its value is the SPN (wsman/*) that corresponds to all target computers;
After we modify the setting to "enabled" and modify its value to wsman/*, restarting SCVMM and then refreshing the cluster/host is OK, the error disappears.

This article is from the "Zjs Microsoft Desktop Virtualization" blog, so be sure to keep this source http://rdsrv.blog.51cto.com/2996778/1633791

SCVMM2012R2 WinRM Error