Put them on a USB stick and leave them there.
Now it won't matter whether your network card is enabled or not. You just need to leave the USB stick attached to use Waves plugins. It is like a "dongle".
If you like working like this, after your testing etc - just get a chappy, small USB stick to use for Waves licenses only (or any other plugins that can use USB sticks to assign licenses). You would copy your licenses back to the cloud, then to your new USB stick.
I prefer using a USB stick to the PC. This way if your hard disk dies, your waves licenses are still intact. Of course if the USB stick blows up....
(Actually this happened to me once - you can redo the licenses to a different USB stick, but not more than once in a year)