When we are using Windows 10 Target Devices with Provisioning Services, we have observed long login times in RDP/Console/ICA as well as slow performance when we are in the Desktop Session. System Interrupts are observed to consume high CPU at the same time, locally installed applications takes long time to open as well. 

We have also observed that Windows 10 vDisk creation takes longer time than expected which is different in different environments. 

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First of all verify if the issue is fixed by stopping and disabling the Network Location Awareness Service on the Master Image before vDisk creation. 

If we get the issue fixed by following the above step, enable and start the Service before vDisk creation and enable the following Local Policy on the Master Image:

• Policy Name: Subnet definitions are authoritative
• Policy Location: Computer Configuration/Administrative Templates/Network/Network Isolation

Enabling this policy will create the following registry key:

• Registry Hive: HKEY_LOCAL_MACHINE
• Registry Path: HKLM\Software\Policies\Microsoft\Windows\NetworkIsolation
• Value Name: DSubnetsAuthoritive
• Value Type: REG_DWORD
• Enabled Value: 1
• Disabled Value: 0

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Problem Cause

As per Microsoft Support, For Windows Network Isolation automatic discovery, the setting is for windows store applications. It will contact domain to get the domain information about sites and subnets. Then filters for the subnets and app will be created and will not be shown under firewall rules. The more subnets you have in the domain, the more filters will be created.

After enabling this policy, it will use the range configured in policy. If you do not use windows store application, it will not have any impact on your environment, even you do not set any range in the policy. But no filter will be added to your environment.

 

We have observed slow performance and long login time issues with Windows 10 VDA Machines while logging in to RDP/Console/ICA Session.