After a recent windows update, I don't know exactly which one, Realtek Audio Console stopped working, it takes about one minute loading, than a message is displayed "Cannot connect to RPC service." I'm currently unable to configure some sound features like 5.1 and 7.1 sound.
My computer also had another audio control software installed, called Nahimic, but I have removed it, because I don't use it anymore, since it not always work properly.
I've also tried the steps from another thread "Realtek Audio Console not opening. Gives error "Cannot connect to RPC service.", the software worked until I restarted my PC, and does not work anymore.
I hope someone can help have this problem sorted out.