This error on scope occur on Chromebooks. According to web sites, there are same issues reported and it looks like related between Windows Server DHCP feature and Chrome OS.
You might want to apply Windows Update and Hot-fix as much as possible and blow are the list of updates and some information.
The blow updates could not solve 100% but when I configure Wi-Fi network and DHCP to allow Chromebook access only one DHCP Scope (Wi-Fi VLAN segment), the issue stopped...
<Japanese: 日本語>
完全には直らないようだが、Chromebook を特定の DHCP Scope (Wi-Fi VLAN segment) にのみアクセスできるようにすると、この現象がほとんど見られなくなった。。。
Event ID 20291 is logged in the System log when a client computer is
moved to a different IP network
Symptoms
Consider the following scenario:
- You have two DHCP servers that are running Windows Server 2012
R2.
- You configure the servers as a failover cluster.
- You set up multiple DHCP scopes and multiple IP networks.
- You put a client computer on one of the IP networks and confirm
that it receives an IP address from one of the scopes.
- You move the client computer to a different IP network.
In this scenario, an Error event that resembles one of the following Event ID 20291 events is logged under the "Applications and Services Logs/Microsoft/Windows/Microsoft-Windows-DHCP Server Events" path in Event Viewer:
…
The fix that resolves this problem is included in
the November 2014 update rollup for Windows RT
8.1, Windows 8.1, and Windows Server 2012 R2.
Note:
Before you install this update, you have to
first remove the failover relationship, install the update to both DHCP nodes
and restart them, and then reestablish the failover relationship.
[Install #: 21-24]
November 2014 update rollup for Windows RT 8.1, Windows 8.1, and
Windows Server 2012 R2
Important When you install this update (3000850)
from Windows Update, updates 3016437, 3003057, and 3014442 are included in the
installation.
Update for Windows Server 2012 R2 (KB3000850)
* To apply this update, you must first install
update 2919355
on Windows 8.1 or Windows Server 2012 R2
[Install #: 11 - 17 ]
Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update: April
2014
Important When you install this update (2919355)
from Windows Update, updates 2932046, 2937592, 2938439, 2934018, and 2959977
are included in the installation.
Windows Server 2012 R2 Update (KB2919355)
Note The updates must be installed in the
following order:
clearcompressionflag.exe, KB2919355, KB2932046,
KB2959977, KB2937592, KB2938439, and KB2934018.
* Prerequisites
To apply this update, you must have the
following update installed on Windows RT 8.1, Windows 8.1, or Windows Server
2012 R2:
2919442 A servicing stack update is available
for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2: March 2014
[install #: 01 ]
A servicing stack update is available for Windows RT 8.1, Windows 8.1,
and Windows Server 2012 R2: March 2014
Method 1: Windows Update
This update rollup is provided as an important
update from Windows Update. If you turn on automatic updating, this update is
automatically installed.
Update for Windows Server 2012 R2 (KB2919442)
Blog Tech Net:
DHCP Failover fixes in KB 2919393 for Windows Server 2012 and KB
2919355 for Windows Server 2012 R2
Good Luck!!
-End-
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