mDNS/Bonjour issue on RBE971 running firmware V12.1.11.15_5.4.12

Thanks for the response.

One important clarification: Both Elgato lights remained connected to my main SSID throughout all testing. I only switched the Mac Studio between the main SSID and the 2.4 GHz IoT SSID.

When the Mac was connected to the IoT SSID, both lights immediately appeared in Bonjour discovery and Control Center. Switching the Mac back to the main SSID (on either 5 GHz or 6 GHz) caused the discovery issue to return.

Even more interestingly, rebooting the Orbi router restored both lights on the main SSID, but within approximately 30 minutes, Control Center began intermittently losing individual lights again. Sometimes one disappears, sometimes both, and occasionally they return within seconds.

The lights remain reachable through direct HTTP requests even when Bonjour discovery fails.

This makes me suspect an intermittent issue with multicast/mDNS handling between wireless clients, potentially related to how the main and IoT networks handle discovery differently.

If anyone here has contacts within NETGEAR QA or firmware engineering, I’d really appreciate having these findings reviewed. I have packet captures available if helpful.

Thanks again!