Network / Sharing :: Netsh Cannot Find Loop-back Adapter Anymore After Update

for a while I've been using netsh to add some IP addresses to the standard windows loopback adapter (interface idx=1) which worked fine until today when I ran windows update.

I have always used this command to assign my loopback adapter an extra IP:

netsh int ip add addr 1 address=111.111.111.111 mask=255.255.255.0 st=ac

(using an example IP address)

But since installing the updates, this returns the following error message:

Failed to configure the DHCP service. The interface may be disconnected.The system cannot find the file specified.

However, when I do "netsh int ip show int" it clearly shows the following interfaces:

Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 50 4294967295 connected Loopback Pseudo-Interface 1
3 25 1500 connected Wi-Fi
4 5 1500 disconnected Local Area Connection* 2

and it's not disconnected at all. The only fix I have found so far was reinstalling windows 8.1 and not installing any updates... I just installed the updates again and it stopped working.