NewsLights-Out on WHS 2011 and WHS v1 Service Pack...

Lights-Out on WHS 2011 and WHS v1 Service Pack 2 Public Beta Refresh


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Martin has been in touch to say that he has released a public beta refresh of Service Pack 2 for his Lights-Out add-in for both WHS v1 and WHS 2011.


Release Notes for Public Beta of Service Pack 2 for Lights-Out

A public beta refresh is available for all user of Lights-Out on WHs 2011 and WHS v1. Please read these instructions carefully because SP2 introduces some functional changes.
Changes added for the beta refresh are marked with a red font.


WHS 2011
WHS v1

Important: Always uninstall any existing version first!
Close WHS Console/Dashboard and download the beta version
Install beta and open WHS Console/Dashboard again

New option for client action after backup

Service Pack 2 Beta refresh introduces a new client option called “Force end action”. This option is enabled by default to ensure the previous behavior. If you disable this option, the action after backup is only executed if a start-up or wake-up for a scheduled backup has been detected AND if there has been no user activity in the last 10 minutes or during backup.

This new features prevents a standby or shutdown (after backup) if a user is already working on the machine. It also prevents a standby or shutdown (after backup) if the machine is already running before the backup has been started.

[WHS 2011 only] Changed IP and MAC address detection for WHS Client Computers

Problem: Lights-Out on WHS 2011 tried to resolve the client name into an IP address and then tried to get the MAC address via an ARP request. This was sometimes not working reliable. In SP2, this information is now transmitted from the Lights-Out client.

Advantage: Correct information
Disadvantage: Missing IP and MAC address if no client is installed/available. This affects currently Apple MAC OSX machines until a native Lights-Out OSX client is available (under development).

Changed handling of Gateways or Repeaters

Problem: Devices connected via a router (or a repeater or VPN gateway) are not visible to the Lights-Out network scanner because for each IP address we always get the same gateway MAC address. Manually added devices with fixed IP addresses sometimes lost the IP address because Lights-Out wrongly detected an IP address conflict and changed that fixed IP address to

Service pack 2 addresses this problem with two changes: Manually added devices are marked with a “fixed IP flag” and are no longer changed to on a conflict.

The second change is a new flag for routers (and repeaters or gateways). Setting this flag in the device properties (Lights-Out computers tab) allows Lights-Out to handle manually added devices with a fixed IP.

If you have a setup, where devices are connect via a repeater or router, assign a fixed IP address and add these devices manually in Lights-Out. Then run the network scanner and Lights-Out should automatically find and mark the router (or repeater/gateway).

User Action instead of Standby or Shutdown

Service pack 2 introduces a new user action. When you select “User Action” in Lights-Out settings, a new text box is displayed where you can enter a command file. The command or batch file can run several actions but must end with a standby or a shut down! You can use the internal shutdown.exe command or you can use psshutdown from the Sysinternals Suite.

If you use psshutdown.exe then the first parameter has to be /accepteula, otherwise the command file blocks. Always use a zero time span to run the command immediately!

A standby looks like this:
psshutdown /accepteula /d /t 0

Other changes since 1.5.1 Build 1555

  • Fixed MAC detection on server for bridged server NICs
  • Fixed WHS v1 console crash after clicking on error link in monitored sources
  • Fixed unwanted client standby when client was started from shut down for a backup
  • Fixed problem with wake-up on client when no IPv4 route is available
  • Fixed remote access detection after IIS reset
  • Fixed handling of IP clients without a MAC
  • Fixed problem with incomplete or damaged xml data files
  • Fixed end of DST problem with WHS v1 connector  Fixed wrong date formatting in calendar for some regions like Japanese
  • Fixed wrong backup date when client backup is disabled
  • Fixed problem with deleted tasklist (delete was not handled, tasks were not removed)
  • Fixed bug in edit properties dialog
  • Changed action after backup: runs only if started for backup with no user activity
  • Changed internal structure of services (both server and client) to fix start-up problems
  • Changed handling of IP and MAC detection for WHS clients
  • Added new option for devices which act as router or repeater
  • Added a user action to run a user defined command instead of standby
  • Added handling of additional routers or gateways
  • Added client command line application
  • Added handling (starting) of dependent services on server resume
Andrew Edney
Andrew Edney
I am the owner and editor of this site. I have been interested in gadgets and tech since I was a little kid. I have also written a number of books on various tech subjects. I also blog for The Huffington Post and for FHM. And I am honoured to be a Microsoft MVP since January 2008 - again this year as an Xbox MVP.

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