Thanks for the update. I agree thatr it's definitely a problem with the Orbi, although I'm not sure if it's hardware or software. The problem is certainly not due to a slower modem, unless there's no flow control (hardware or software) or insufficient buffering in the Orbi, which is, once again, an Orbi issue. I never got a response back from Netgear support, which is another reason I returned mine.
If Netgear does acknowledge that there's a problem and fixes it I'll see about trying it again, but if not I'll have to se if there's a mesh network system that has equivalent coverage and good reliability.
