Cannot change static IP on Ethernet Adaptor

Surface Pro 3

Windows 8.1

using Microsoft Surface USB Ethernet Adapter

I am not able to set a new static IP address on my USB Ethernet Adapter

ipconfig /all gives the following:

Ethernet adapter Ethernet - Dongle:

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Surface Ethernet Adapter #2

   Physical Address. . . . . . . . . : 60-45-BD-xx-xx-xx

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

   IPv4 Address. . . . . . . . . . . : 10.10.10.1(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.0.0.0

   Default Gateway . . . . . . . . . : 10.10.10.2

   NetBIOS over Tcpip. . . . . . . . : Enabled

However, if I try and change the static IP using Control Panel -> Network Connections -> "Ethernet - Dongle" -> IPv4 properties

the dialog has Obtain Automatically selected and the address fields are blank.

I I try and set the new static IP from here, I get no errors from the window, then if I do an ipconfig the adapter then has TWO static IPs (and won't talk on either of them):

Ethernet adapter Ethernet - Dongle:

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Surface Ethernet Adapter #2

   Physical Address. . . . . . . . . : 60-45-BD-xx-xx-xx

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

 IPv4 Address. . . . . . . . . . . : 10.10.10.1(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.0.0.0

   IPv4 Address. . . . . . . . . . . : 172.21.205.1(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.255.255.0

   Default Gateway . . . . . . . . . : 172.21.205.250

                                       10.10.10.2

   NetBIOS over Tcpip. . . . . . . . : Enabled

If I do it again I can even get a third IP!

Ethernet adapter Ethernet - Dongle:

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Surface Ethernet Adapter #2

   Physical Address. . . . . . . . . : 60-45-BD-xx-xx-xx

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

   IPv4 Address. . . . . . . . . . . : 10.10.10.1(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.0.0.0

   IPv4 Address. . . . . . . . . . . : 172.21.205.1(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.255.255.0

   IPv4 Address. . . . . . . . . . . : 192.168.1.1(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.255.255.0

   Default Gateway . . . . . . . . . : 172.21.205.250

                                       10.10.10.2

                                       192.168.1.2

   NetBIOS over Tcpip. . . . . . . . : Enabled

Throughout this if I check the adapter status through Control Panel it always says "No network access" (the cable is plugged in an link is up) and the same static IP details as ipconfig gives.

Things I have tried to fix this so far:

• uninstall adapter from device manager, unplug, restart, plug in, auto detected, no IPs in list, try to set one, still doesn't work
• plug adapter in to different USB port on separate controller (such as the one in the dock)
• manually setting static ip address using netsh commands
• ipconfig /release and ipconfig /refresh (didn't expect this to do anything, just listing here so no on mentions this)
• "netsh int ip reset" in an elevated prompt gives:

Resetting Global, OK!

Resetting Interface, OK!

Resetting Unicast Address, OK!

Resetting Route, OK!

Resetting , failed.

Access is denied.

Resetting , OK!

Restart the computer to complete this action.

restart and still doesn't work

So, any ideas on how to fix this, short of wipe and reinstall please.