Hi everyone,

I'm having some problems installing the DNS feature on my server following the installation of other AD components. It's the first time I've setup a DC so I'm just trying to get my head around everything at the moment. I'm now trying to add the DNS feature to allow joined computers to connect to each other user hostnames. So, in order to do that, I tried to add the feature for DNS Server but found that I was presented with an error saying:

"Failed to open the runspace pool. The Server Manager WinRM plug-in might be corrupted or missing"

Now, I've Googled this error and found a very large number of responses on this issue telling me to configure the firewall to allow the connection:

PS C:\Users\jimbo8098> winrm quickconfig
WinRM service is already running on this machine.
WinRM is not set up to allow remote access to this machine for management.
The following changes must be made:

Enable the WinRM firewall exception.

Make these changes [y/n]? y

Error: One or more update steps could not be completed.

Unable to enable the firewall for WinRM.

And also to try adding 127.0.0.1 to the http IP list:

PS C:\Users\jimbo8098> netsh http show iplist

IP addresses present in the IP listen list:
-------------------------------------------

    127.0.0.1
    x.x.x.x

PS C:\Users\jimbo8098> netsh http del iplisten 127.0.0.1

IP address successfully deleted

PS C:\Users\jimbo8098> netsh http add iplisten 127.0.0.1

IP address successfully added

PS C:\Users\jimbo8098> netsh http show iplist

IP addresses present in the IP listen list:
-------------------------------------------

    x.x.x.x
    127.0.0.1

But still the WinRM feature refuses to allow changes, connections or... well... anything due to it being "corrupt or missing".

I do not see any errors in the event logs and it's pretty much a fresh install aside from some Hyper-V servers so I'm thinking I could simply reinstall but I wanted to see if there's anything that can be done prior to going ahead with that.

Any ideas?

-Jim

• Edited by jimbo8098 Sunday, September 06, 2015 2:33 PM

How did you perform the installation of AD?  By default, it will install DNS as part of the process, so there should be no need to try to do it separately afterwards.