What sort of hiccups are you experiencing? I have a Weiss 204 and am using a Bluesound Node as the streamer and also had some issues for a while (some random noise issues that were very intermittent for instance). I tried a number of different troubleshooting options, including swapping out another 204 from the dealer. What finally solved my issue, after several different ways of connecting to the Weiss was adding an iFi USB ground defender with one of their power supplies. This may have been very system dependent, but eliminating the 5v USB power from the Bluesound and addling it back with a much cleaner PS fixed the issue that took me some months to figure out.
I even had my own “hiccup” issues via an AQ SPDIF (coax) cable. I never truly understood the root cause, but glad that the cleaner USB power resolved the issue.