Luc's problems sound just like what I had with my Squeezebox, always dropping off the network, having to be rebooted, router/modem restarted, restarted again, reconfigured and then still nothing. Then next day OK, only to drop off next time I tried to use it etc
I've been much more lucky with the Vault2. Only had one major drop out after about 6 months of flawless performance, which was solved by doing reboots of the modem and Vault. Once every few months the lappy (using Win 10) might not find the Vault2 on the network but all I need to do is turn the laptop off and on again.
Never had to delve into the registry or fiddle much with the network settings, touch wood. Even when updating the BluOS the Vault2 automatically reboots itself, so for me at least it really has been a case of plug and play.
But as Luc alludes, I'm only driving my 4x4 around the city.