Windows 10 PVS target devices experience poor performance
Article ID: CTX232340
Updated On:
Description
After capturing a Windows 10 vdisk you might experience below par performance when streaming the vdisk to the target device. The issue can manifest in a number of ways, for example:
1. Long time to capture the vdisk.
2. Slow boot/login times.
3. Slow file transfer speeds compared to other machines on the network.
The issue is not seen on other target devices running a different operating system such as Windows 7 or Windows 2012 R2.
Temporary workarounds are as follows:
a. Restart the streaming service on the PVS server which is hosting the target device connection.
b. Break the network connection between the target device and the PVS server.
The above workaround will only persist until the target device is rebooted.
Environment
Caution! Using Registry Editor incorrectly can cause serious problems that might require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. Be sure to back up the registry before you edit it.
Resolution
The issue is resolved by configuring the following Microsoft policy setting on the target device:
Computer Configuration/Administrative Templates/Network/Network Isolation/Subnet definitions are authoritative
This creates a setting in the target device registry:
Registry Hive: HKEY_LOCAL_MACHINE
Registry Location: Software\Policies\Microsoft\Windows\NetworkIsolation
Value Name: DSubnetsAuthoritive
Value Type: REG_DWORD
Enabled Value: 1
Computer Configuration/Administrative Templates/Network/Network Isolation/Subnet definitions are authoritative
This creates a setting in the target device registry:
Registry Hive: HKEY_LOCAL_MACHINE
Registry Location: Software\Policies\Microsoft\Windows\NetworkIsolation
Value Name: DSubnetsAuthoritive
Value Type: REG_DWORD
Enabled Value: 1
Problem Cause
As per the setting description when the policy is set to the default value (disabled/unconfigured) the target device is attempting to discover all of the private networks/subnets in the corporate domain.Additional Information
Citrix Provisioning Services: Slow Login Performance with Windows 10 VDA Machines
https://support.citrix.com/article/CTX232313
MS policy description:
Description:
This setting does not apply to desktop apps.
Turns off Windows Network Isolation's automatic discovery of private network hosts in the domain corporate environment.
If you enable this policy setting, it turns off Windows Network Isolation's automatic discovery of private network hosts in the domain corporate environment. Only network hosts within the address ranges configured via Group Policy will be classified as private.
If you disable or do not configure this policy setting, Windows Network Isolation attempts to automatically discover your private network hosts in the domain corporate environment.
For more information see: http://go.microsoft.com/fwlink/p/?LinkId=234043
https://support.citrix.com/article/CTX232313
MS policy description:
Description:
This setting does not apply to desktop apps.
Turns off Windows Network Isolation's automatic discovery of private network hosts in the domain corporate environment.
If you enable this policy setting, it turns off Windows Network Isolation's automatic discovery of private network hosts in the domain corporate environment. Only network hosts within the address ranges configured via Group Policy will be classified as private.
If you disable or do not configure this policy setting, Windows Network Isolation attempts to automatically discover your private network hosts in the domain corporate environment.
For more information see: http://go.microsoft.com/fwlink/p/?LinkId=234043
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