No. When I say leave the Ethernet enabled, I don't mean actively use. For instance, you can be using the wireless card for Internet access (or LAN access) and not be using the Ethernet at all, but the Ethernet is enabled, it just does not have a cable plugged into it. The reason you need to leave it enabled is because when you disable it, Windows will not show a hardware address for it. Again, leaving it enabled does not necessarily mean you are using it. To enable or disable a network device, go into network connections and right click on them. There is an enable and disable option there.
I will give an example:
1. Let's say, when you licensed KioWare, that you had the Ethernet and wireless enabled. KioWare (by chance) used the wireless card hardware address (among other variables) to generate the system code. This would mean that you would always need to have the wireless enabled when you ran KioWare. The Ethernet would not matter at all, even though you had it enabled when you licensed. Notice that was "by chance"; KioWare could have just as easily used the Ethernet hardware address.
To prevent KioWare from generating a system code based on a piece of hardware that is unreliable, such as a wireless card, you need to disable it when you license. If you have a reliable piece of network hardware that you can leave enabled (and optionally license electronically with) such as your Ethernet card, do that. If you don't care about electronic licensing and want to call in and license manually, just disable all network cards when you license.
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