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Client Hyper-V and USB Passthrough For a Scanner

I have setup a Windows 7 VM running on Windows 10 Client Hyper-V to be able to continue using a discontinued application for a short period of time.  The catch is that I’m trying to install a Panasonic KV-S1025C scanning to use in the VM, but with
no luck.  I understand that this requires USB Passthrough, but can’t seem to find anything more for documentation beyond enabling USB mass storage.  I’ll take any suggestions on this, if anyone has any thoughts.

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New KB articles published for week ending 11th August 2018


VMware NSX for vSphere

Publishing Distributed Firewall rules fails with error “Unmatched rules found in the configuration”
Date Published: 2018-08-09

Environments running vRNI 3.8 with NSX may experience NSX Controller memory issues and interruption to networking
Date Published: 2018-08-09

VMware ESXi

SNMPD crashes frequently after upgrading to ESXi 6.7
Date Published: 2018-08-08

VMware Horizon

Instant Clone Pool creation might fail
Date Published: 2018-08-07

VMware vCenter Server

Custom permissions are not working as expected after upgrading/migrating from vCenter Server 6.0 to 6.5
Date Published: 2018-08-11

VMware vCloud Availability for vCloud Director

“Internal server error” message when running the vcav org-vdc enable-replication command on the vCloud Availability Installer
Date Published: 2018-08-06

Understanding the replication disk space for an Outgoing Replication to vCloud Availability for vCloud Director
Date Published: 2018-08-06

How to determine the current storage used by replication instances via the vCloud Availability for vCloud Director API
Date Published: 2018-08-08

“Unable to delete principal with username com.vmware.vr-…” error when deploying vCloud Availability for vCloud Director
Date Published: 2018-08-09

VMware vRealize Log Insight

Exporting Hosts Return Incomplete Results vRealize Log Insight 4.x
Date Published: 2018-08-08

Update or Delete on Shared Extracted fields take a long time in vRealize Log Insight 3.x and up
Date Published: 2018-08-09

VMware vRealize Operations for Horizon

The Total Logon Time metric displays “No Data” in vRealize Operations for Horizon 6.x
Date Published: 2018-08-09

The post New KB articles published for week ending 11th August 2018 appeared first on Support Insider.

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Virtual Switch Breaks DHCPV6 on Windows 10

I run Hyper-V on a Windows 10 Pro machine.  It is used lightly for some testing scenarios.

Before I enabled Hyper-V and created the virtual switch, my workstation properly requested and received a DHCPv6 IP address and registered itself with the DNS server (all running on OpenWRT).

After enabling Hyper-V and the virtual switch, my main network connection now makes use of the bridge and virtual switch.  The switch is setup as an internet connected bridge.

However, now my workstation no longer gets a DHCPv6 address, instead it has an SLAAC primary and temporary address.  Nor does the name register in DNS.

There was a bug like this once in the main IPv6 code for Windows 10, but it was fixed a while back.  I wonder if it remains in the vSwitch driver.

Can anyone else confirm?

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Cannot login to Windows Server VM running Server 2016


I have a Hyper-V host running a Windows Server 2016 VM, on a domain. When i try to login with my domain account after typing in my password and clicking enter the is taking back to the name box and it remains on the login screen. Group Policy is set to disable
local accounts on the computers when they are joined to a domain. Any ideas on what is causing this ?

Thank You

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Top vSAN product articles for July 2018


  1.  Component metadata health check fails with invalid state error
  2. “Host cannot communicate with all other nodes in vSAN enabled cluster” error
  3. vCenter Server 6.0 Update 2 displays on non-vSAN enabled ESXi hosts displays the message: Retrieve a ticket to register the vSAN VASA Provider
  4. Status of TLSv1.1/1.2 Enablement and TLSv1.0 Disablement across VMware products
  5. The ramdisk ‘vsantraces’ is full
  6. Cannot view or add vSAN Storage Providers in the vSphere Web Client
  7. Certification of Dell PERC H730 and FD332-PERC Controllers with vSAN 6.x
  8. “An error occurred while consolidating disks: msg.disklib.NOSPACE” in vSAN
  9. ESXi host in a vSAN cluster reports a warning alarm: Host vendor provider registration
  10. vSAN host may encounter a purple diagnostic screen during performance statistics updates
  11. Creating or editing a virtual machine Storage Policy to correct a missing vSAN VASA provider fails
  12. “Unexpected status code: 503” error in vSAN health check plug-in
  13. “Unable to register file system for APD timeout notifications: Inappropriate ioctl for device” message in vSAN
  14. vSAN disk components are marked ABSENT after enabling CBT
  15. vSAN 6.2 hybrid disk group performance degradation
  16. Local Disks goes into Permanent Device Loss (PDL) state with inbox drivers for mpt2sas
  17. VMware vSAN datastore not listed as a matching datastore when creating a storage based policy
  18. vSAN CLOMD daemon may fail when trying to repair objects with 0 byte components
  19. “Failed to create directory” error when running vSAN 5.5/6.x
  20. “Virtual SAN Disk Balance” warning alarm during vSAN health check

The post Top vSAN product articles for July 2018 appeared first on Support Insider.

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Top NSX for vSphere product articles for July 2018


  1. Virtual machine in ESXi is unresponsive with a non-paged pool memory leak
  2. VMs running on ESXi 5.5 with vShield endpoint activated fails during snapshot operations
  3. Performing vMotion or powering on a virtual machine being protected by vShield Endpoint fails
  4. When using VMware vShield App Firewall, virtual machines fail to connect to the vSwitch/vDS/network with the error: Failed to connect virtual device Ethernet0
  5. “The pending transaction requires xxx MB free space” error when installing VIBs
  6. Installing VMware vShield App fails with the error: Previous installation of host services encountered an error
  7. ESXi 5.5 and 6.0 hosts fail with a PSOD: VMCIEventDelayedDispatchCB@com
  8. Systems running MOVE Agentless 3.0 on ESXi 5.5 suffer performance issues or become unresponsive
  9. ESX/ESXi 4.1 Update 2 host with vShield Endpoint 1.0 installed fails with a purple diagnostic screen mentioning VFileFilterReconnectWork
  10. Degraded Windows network file copy performance after full ESXi 5 VMware Tools installation
  11. Status of TLSv1.1/1.2 Enablement and TLSv1.0 Disablement across VMware products
  12. Windows virtual machines using the vShield Endpoint TDI Manager or NSX Network Introspection Driver (vnetflt.sys) driver fails with a blue diagnostic screen
  13. Network connectivity issues after upgrade in NSX/VCNS environment
  14. Slow VMs after upgrading VMware Tools in NSX and vCloud Networking and Security
  15. vShield Manager appliance system disk is full in VMware vCloud Networking and Security 5.5.x
  16. NSX Controller disconnected or isolates intermittently
  17. Duplicate VTEPs in ESXi hosts after rebooting vCenter Server
  18. NSX is unavailable from the vSphere Web Client Plug-in
  19. Guest Introspection memory usage spikes to 90+% or you see the error: “Lost communication with ESX module” in NSX-V 6.2.x and 6.3.x
  20. After upgrading to VMware ESXi 5.5 Patch Release ESXi550-201504002, virtual machines using VMware NSX for vSphere 6.x or Cisco Nexus 1000v are unable to communicate across hosts

The post Top NSX for vSphere product articles for July 2018 appeared first on Support Insider.

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Top vSphere product articles for July 2018


  1. “The transaction log for database ‘VIM_VCDB’ is full” error on a Microsoft SQL DB server
  2. ESXi 5.5 Update 3b and later hosts are not manageable after an upgrade
  3. “Host IPMI system event log status” alarm in vCenter Server
  4. Determining where growth is occurring in the vCenter Server database
  5. ESXi host disconnects intermittently from vCenter Server
  6. Troubleshooting the vCenter Server service
  7. Investigating the health of a vCenter Server database
  8. Required VMware vCenter Converter ports
  9. The vpxd process becomes unresponsive after upgrading to vCenter Server 5.5/6.0
  10. Storage vMotion migration fails with the error: The method is disabled by ‘SYMC-INCR dd-mm-yyyy hh:mm
  11. Troubleshooting checklist for VMware Converter
  12. vCenter Server 5.5 fails to start after reboot with the error: Unable to create SSO facade: Invalid response code: 404 Not Found
  13. Unable to log in to the root account of vCenter Server Appliance
  14. Upgrading to VMware Tools 5.1 reports the message: Error in the RPC receive loop: RpcIn: Unable to send
  15. ESXi hosts fail to mount VMFS5 volumes that are formatted with ATS-only capabilities
  16. After making a change or restarting vCenter Single Sign-On server system, vCenter Server 5.1.x fails to start
  17. “could not open/create change tracking files” error when powering on VM
  18. Failed to verify the SSL certificate” after upgrading to vCenter Server 5.5 U1 or later
  19. vCenter Server 5.x fails to start with the error: Failed to add LDAP entry
  20. Enabling the Update Manager plug-in fails with the error: database unavailable or has network problems

The post Top vSphere product articles for July 2018 appeared first on Support Insider.

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2012R2 VMs stopped booting under 2016 Hypervisor

Hello all,

My environment:

3 physical nodes running Windows Server 2016 Datacenter. Hyper-v failover cluster. Fully updated.

I deployed some virtual machines with Windows Server 2012R2, 2016 and CentOS.

They all start running fine, but after some time all the 2012R2 vms stop booting up. I can only get to the recovery menu.

2016 and CentOS keep working OK.

What I have tried:

  • Reinstalling from scratch. The problem appeared again after a while. At some point they wouldn’t start anymore. Windows updates were disabled this time so it wasn’t one of them what triggered the error.
  • Creating a new Gen1 VM, attaching the VHDX. No luck.
  • Local VM on one of the nodes, running standalone, out of the failover cluster. Same issue.
  • Boot repairs (checkdisks, sfc, bootrec, bcdedit…). I can’t get them to boot anymore.
  • Windows Update fixes (like It doesn’t seem to be a pending update error.
  • I had one testing VM which was off for a while, almost clean. It doesn’t boot either. 
  • Safe mode, safe mode with cmd, safe mode with networking, disable driver signature, disable early launch malware… boot modes don’t work either.


The Host log shows this error for the Hyper-V Worker:

‘VM-NAME’ has encountered a fatal error.  The guest operating system reported that it failed with the following error codes: ErrorCode0: 0x7B, ErrorCode1: 0x749E6790, ErrorCode2: 0xC0000034, ErrorCode3: 0x0, ErrorCode4: 0x0.  If the
problem persists, contact Product Support for the guest operating system.  (Virtual machine ID )

Anyone having the same problem? Is there any more information that I can provide to help troubleshooting? 

Is there any way I can check some internal VM boot log? When I select "enable boot logging" in the VM it doesn’t create the log. I believe it doesn’t reach that phase.

Thank you very much in advance.

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Error code 0x80070057


I am trying to do an initial replication and i keep getting error 0x80070057 one or more arguments are invalid.
How do i know wich argument is invalid? 

I have to transfer 4.3 TB and I have 6.3 TB of free space on the receiving host.
I also get eventid 3350 and 3280 on my sending host.

How can i narrow down the problem? 

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Start VM freeze entire host system


I have a strange issue with couple imported VM.

My system is fully updated Windows 10 Pro build 1803. I imported eight VM with Windows 2016 and Windows 10 (generation 1, version 5.0).

Two VM (Windows 2016), after start, freeze host Windows 10. I can’t run Task Manager or any app. I have to restart by using the on-off button.

Thanks for any help or ideas.

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