I have to agree with Rich, if you are losing connections to both the streamer and the roon control devices it w the problem with still be there even if you get a new streamer would seem to point to a WiFi problem. And if this is the case the problem will remain even if you get another streamer.
It might be a coverage problem, but it could also be an interference issue. one of the first things I would try is simply changing the Wifi to a different channel. Perhaps there is a neighbor operating on the same channel with a high power router that is stepping all over your signals. This is a quick and easy thing to try and best of all it does not involve any cash outlay.
As for streaming I have been using the Bluesound Node for about two years now and it has given me very little trouble at all. The reason I mentioned getting dropouts last weekend was not because it is a persistent problem, but rather because it was so out of the ordinary. At first the control software was a little clumsy, but I have to say it has gotten much better over time.
The only problem I have had on a regular basis is that every once in a while I get a 1 or 2 second burst of static. This only happens when playing either native of MQA unfolded 24/96 files. And I think the problem is not with the Node, but rather with my DAC. I have one of the original EE DACs and it has an early TOSLINK receiver that is bandwidth limited to a max of 24/96. Although the DAC itself will do 192, the optical input will not go that high (the next version the DAC Plus had a better receiver that solved this problem.) So I have a feeling that there is a sync issue with 24/96 files. But it only happens occasionally and is quickly over, so for now I am just living with it. The current production Bluesound streamer the Node 2 had coaxial as well as optical digital outs, which I think would solve the problem, but it is just not annoying enough to get me to shell out $500 to fix it.
And FYI, the with the last software update, Bluesound units will now stream Amazon Prime Music, which may or may not interest you. I am hoping that sometime soon they will include the software to stream Sirius/XM.