The only “difference” between the Canadian/US Moves is the power cord it ships with. Otherwise, they’re exactly the same. 

Hi

I use Asus routers as well. Although it has nothing to do with the Boost the following may be causing connection issues. Although not recommended you may have to dispense with WPA3 altogether 

Products That Do Not Support WPA3 "Mixed Mode" *

WPA3 is the latest standard for Wi-Fi encryption. This is separate from Wi-Fi 6 / 802.11ax, but in practice the same products will often be first or early to implement both.

If some devices experience problems connecting to the Wi-Fi 6 network, the problem may be in missing WPA3 support or the "WPA3/WPA2 mixed mode" feature. Mixed mode is intended to ensure that older clients can still connect, but in practice there are some clients who do not recognize this setting and refuse to connect at all.

Such problems are likely to apply to a number of older products, but reports we have received so far suggest that it applies at least to the following:

• Older Apple products, such as iPad 4 (from 2012) and other products using iOS version 12 or earlier
• Older Microsoft Surface models

As WP3 is much safer than WPA2, we do not recommend downgrading the security of WPA2 to let older clients connect.

 * More info on the subject here:  https://eyenetworks.no/en/wifi-6-compatibility/

Just to add these Sonos products support WPA3…

• Amp
• Arc
• Beam (Gen1 & 2)
• Five
• Move
• One (SL, Gen2)
• Port
• Roam
• Sub (Gen3)

Have you tried connecting Sonos to the Asus with a cheap Ethernet switch? I just bought a Netgear Nighthawk and saw my whole Sonos network disappear. I googled the issue and one recommendation was to buy a simple ethernet switch and put it between the Nighthawk and the Bridge.

I got a «Findway 2 Ports Network Switch Splitter Selector Hub 2-in 1-Out or 1-in 2-Out 100M MT-RJ45-2M» for $7 from Amazon, plugged it in and my whole Sonos system came back immediately. I have to add that thirty minutes later it seems to work much better with this more powerful and modern router.

It seems, based on earlier posts, that there is some firewall incompatibility or IP address limitation with some WiFi 6 routers and luckily a workable, very slightly clunky solution. Maybe it works similarly with Asus. 

That’s not a Ethernet switch it’s a physical splitter, connecting one or other device at a time. If it solved a Spanning Tree problem caused by wiring two Sonos devices to the Nighthawk it did so by disconnecting one or other Sonos device entirely from the wired network.

Sorry, but it’s a total red herring in terms of the OP’s current problems.

Not that it makes a difference in this case, as the OP is trying to make his wired/SonosNet system discoverable.

I still suspect the router of not handling discovery broadcasts correctly.

That’s not accurate, there is and always was only one Sonos device wired to the network and that’s the Boost. Everything else is wireless and works. I never tried wiring two Sonos products to the Nighthawk. 

The fact is that the type of A/B splitter you referenced is a totally passive, straight-through device. I have several. What it isn’t is an Ethernet switch. 

I also can’t imagine why your Sonos disconnected when wired to the Nighthawk, unless there was something defective. I have Sonos wired to a Nighthawk R7000 and have done for years.

It did not work without the switch, now it does. It might be black magic but I now have my $7 solution. If it breaks down I will report.  

Yes, I think the same too …and either there’s a setting somewhere on the Asus router to allow the multicast broadcast to all segments of the LAN, or it’s something that Asus needs to address with their firmware.