Windows Server

Error: Failed to create a scheduled task, cannot perform the operation because the runspace pool is not in the open state

Windows Admin Center is a locally deployed, browser-based app for managing Windows servers, clusters, hyper-converged infrastructure, as well as Windows 10 PCs. It is a free product and is ready to use in production. When prompted with an error when trying to access WAC from other browsers saying the site is not secure. See the following links for “How to setup Windows Admin Center, “How to install Chocolatey” and “How to install, upgrade and uninstall software with Chocolatey“. You may also be interested in Winglet, which is also a Windows Package manager “Winglet”. See how to install Winglet and how to install applications with Winglet CLI

This problem occurs because there is no firewall rule that will allow Windows Admin Center access on the remote server.

To fix this issue, temporarily turn off the firewall on your device.
Note: This act is very UNSAFE

Then try to create your scheduled task. When the scheduled task is created successfully, then you have two methods to set up the firewall.

Method 1:

Create Inbound Firewall rule via PowerShell.

New-NetFirewallRule -DisplayName „SmeInbounOpenException“ -Description „Windows Admin Center inbound port exception“ -Localport 6516 -Protocol TCP

Ensure to run PowerShell with Admin privilege, else it will FAIL 🙂

Method 2:

You can also create this rule via the Windows Firewall (Windows Defender Firewall and Advanced Security.

The firewall windows can be accessed via the following path
– Control Panel
– System and Security
– Windows Defender Firewall

This will open the Windows Firewall “Advanced Settings and Advanced Security” as shown below.

In this method, you have got two options

  • You can choose to exclude WAC from the firewall or
  • Create a firewall rule with for the TCP/IP

I will opt to go with the option to exclude the program option and select the the

%ProgramFiles%\Windows Admin Center\sme.exe

Click to allow connections to the program as shown below

Select the profile it should apply to. Since this is a test enviornment, I will select all the profiles as shown below.

Enter the firewall name and description of the rule and click on Finish

Either of the options you chose, you will and the same end result. I hope you found this blog post helpful. If you have any questions, please let me know in the comment session.

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