cloudbase-ini fails intermittently configuring DNS on network adapter

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We are seeing intermittent failures with a Windows 2012 R2 image deployed on VMware. The error is in cloud-init not being able to configure DNS on the network adapter. We suspect a timing issue where the adapter is not always ready for configuration when attempted. Has anyone else observed this behavior? The cloud-init log looks like this:

2015-08-19 11:53:00.397 1404 INFO cloudbaseinit.utils.debiface [-] Parsing Debian config...

# Injected by Nova on instance boot
#
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
        address 172.23.143.161
        netmask 255.255.255.0
        broadcast 172.23.143.255
        gateway 172.23.143.1
        dns-nameservers 172.22.124.101 172.30.189.21


2015-08-19 11:53:00.397 1404 DEBUG cloudbaseinit.utils.debiface [-] Found new interface: {'netmask6': None, 'name': u'eth0', 'mac': None, 'address6': None, 'broadcast': u'172.23.143.255', 'dnsnameservers': [u'172.22.124.101', u'172.30.189.21'], 'gateway6': None, 'address': u'172.23.143.161', 'netmask': u'255.255.255.0', 'gateway': u'172.23.143.1'} _add_nic C:\Program Files (x86)\Cloudbase Solutions\Cloudbase-Init\Python27\lib\site-packages\cloudbaseinit\utils\debiface.py:103
2015-08-19 11:53:00.538 1404 INFO cloudbaseinit.plugins.common.networkconfig [-] Configuring network adapter FA:16:3E:1D:C7:4A
2015-08-19 11:53:00.834 1404 DEBUG cloudbaseinit.osutils.windows [-] Setting static IP address set_static_network_config C:\Program Files (x86)\Cloudbase Solutions\Cloudbase-Init\Python27\lib\site-packages\cloudbaseinit\osutils\windows.py:557
2015-08-19 11:53:01.177 1404 DEBUG cloudbaseinit.osutils.windows [-] Setting static gateways set_static_network_config C:\Program Files (x86)\Cloudbase Solutions\Cloudbase-Init\Python27\lib\site-packages\cloudbaseinit\osutils\windows.py:565
2015-08-19 11:53:01.240 1404 DEBUG cloudbaseinit.osutils.windows [-] Setting static DNS servers set_static_network_config C:\Program Files (x86)\Cloudbase Solutions\Cloudbase-Init\Python27\lib\site-packages\cloudbaseinit\osutils\windows.py:573
2015-08-19 11:53:01.256 1404 ERROR cloudbaseinit.init [-] plugin 'NetworkConfigPlugin' failed with error 'Cannot set DNS on network adapter'
2015-08-19 11:53:01.256 1404 ERROR cloudbaseinit.init [-] Cannot set DNS on network adapter
2015-08-19 11:53:01.256 1404 TRACE cloudbaseinit.init Traceback (most recent call last):
2015-08-19 11:53:01.256 1404 TRACE cloudbaseinit.init   File "C:\Program Files (x86)\Cloudbase Solutions\Cloudbase-Init\Python27\lib\site-packages\cloudbaseinit\init.py", line 67, in _exec_plugin
2015-08-19 11:53:01.256 1404 TRACE cloudbaseinit.init     shared_data)
2015-08-19 11:53:01.256 1404 TRACE cloudbaseinit.init   File "C:\Program Files (x86)\Cloudbase Solutions\Cloudbase-Init\Python27\lib\site-packages\cloudbaseinit\plugins\common\networkconfig.py", line 154, in execute
2015-08-19 11:53:01.256 1404 TRACE cloudbaseinit.init     nic.dnsnameservers
2015-08-19 11:53:01.256 1404 TRACE cloudbaseinit.init   File "C:\Program Files (x86)\Cloudbase Solutions\Cloudbase-Init\Python27\lib\site-packages\cloudbaseinit\osutils\windows.py", line 577, in set_static_network_config
2015-08-19 11:53:01.256 1404 TRACE cloudbaseinit.init     "Cannot set DNS on network adapter")
2015-08-19 11:53:01.256 ...