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Open vSwitch Extension is not running on any switch

PS C:\Users\Administrator> ovs-vsctl.exe add-br br-port3
ovs-vsctl:  Error detected while setting up 'br-port3'.  See ovs-vswitchd log for details.

From the ovs-vswitchd log:

2016-06-22T13:27:04.187Z|00030|wmi|WARN|Open vSwitch Extension is not running on any switch
2016-06-22T13:27:04.188Z|00031|wmi|WARN|Could not find HRESULT description for: 0.
2016-06-22T13:27:04.188Z|00032|dpif_netlink|ERR|Could not create wmi internal port with name:br-port3
2016-06-22T13:27:04.188Z|00033|bridge|INFO|bridge br-port3: using datapath ID 00009a9ef2a50240
2016-06-22T13:27:04.188Z|00034|connmgr|INFO|br-port3: added service controller "punix:C:\ProgramData\openvswitch\/br-port3.mgmt"

However, I do have the vSwitch configured with it:

PS C:\Users\Administrator> get-VMSwitchExtension -VMSwitchName vSwitch -Name "Open vSwitch Extension"

Id                  : 583CC151-73EC-4A6A-8B47-578297AD7623
Name                : Open vSwitch Extension
Vendor              : Open vSwitch
Version             :
ExtensionType       : Forwarding
ParentExtensionId   :
ParentExtensionName :
SwitchId            : 9224fc44-b9eb-49cf-b1f8-e5a6c57893e7
SwitchName          : vSwitch
Enabled             : True
Running             : True
ComputerName        : WIN-HQHVLTQ4OLK
Key                 :
IsDeleted           : False

So what am I doing incorrectly? I'm following the blog post from