Can’t change default address of ICS from Wifi to LAN to desired subnet

I want to change the default address of the Internet Connection Sharing (ICS) from 192.168.137.1 to a different one in the 192.168.100.X subnet.

What happens is that instead of the desired address I get 192.168.0.1

To do this I have followed this guide here and if you are too bored to click it, I basically changed HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesSharedAccessParametersScopeAddress in regedit to desired IP.

Is there some known limitation where only some subnets are allowed to be used for ICS or is this a bug?