Doug S replied to the topic 'USB3 / WIFI' in the forum. 4 years ago

@ amendolajamie : Re: "The Mate hardware setup is exactly the same, so I know that this can work with the RPI4".

FWIW, I have yet to hear of anyone that can plug their equipment into the Pi4's USB3 port(s) while using 2.4Ghz wireless and achieve stable operations. Momentary success is possible, but not reliable operations (defined as consistently repeatable boots with functional wireless operation). Your symptoms sound EXACTLY like what everyone has experienced with 2.4Ghz wireless and USB3 on the Pi4. As I say in the referenced post, USB3, HDMI, bluetooth, and particular screen resolutions are involved. Best of luck as you figure out your strategy, but I'd suggest 5Ghz or an ethernet cable. Some have mentioned using separate USB wireless dongle configs (possibly from hubs), but I haven't followed those approaches closely (search other posts for details).

A second note about your chained camera config. I haven't run a chained config before, but I note that the ASI specs for your cameras are 170ma + 300ma = 470ma. That should be fine for USB3, but a bit tight for USB2 (recognizing they've set some headroom in the spec). If you add equipment in the future (focuser, SSD, etc.), you'll want to be thinking about a powered USB3 hub. In that case, only the data connect should go back to the PI's USB3 port....all other equipment is best plugged into a powered USB3 hub.

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