Hey Marco. We are moving away from the current RC driver implementation for Win8 and newer in our next release. However, there is no ETA or release date available-- this is under development literally as I type this.
For now, if the solution on the KB article did not help, please open a support case so we can investigate further. We'll need access to a PC/laptop where we can troubleshoot. We need to be sure the driver is actually getting hooked by RC, and not just falling back to polling mode automatically.
So until the next release, we'll have to troubleshoot what we currently have. Please open a case and we can get started.