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Orbi system - Faulty LAN / switching design - Will NG ever fix it?
Issue - Orbi system with 2 satellites (R1, S1, S2) will randomly drop LAN communication between segments. e.g. devices connected to S1 (both wired/wireless) won't be able to ping devices on S2 (or ...
Thw0rted that's the dream right. I find the Orbi is pretty good with roaming clients. I have Fast Roaming Enabled. Just be advised the clients also need to play their part. They have to support all three of 802.11k, 802.11r, and 802.11v. These specifications are over 7 years old so hopefully all clients efficiently support them by now.
Apple put together a good explanation here: https://support.apple.com/en-us/HT202628
I did a bit of reading about this, and I think 11r only applies if you use Enterprise network security ("RADIUS", maybe?). The other two are supposed to be "hints" to the client, right? Anyway, the clients I'd be most concerned about are modern iOS, Android, Mac, and Windows devices. At the very least, I'm pretty sure they can't do worse than they are right now...
You are correct 802.11r predominantly benefits enterprise solutions, WPA2-Enterprise with Radius, but the specification also included enhancements to WPA2-Personal with efficiencies in establishing a new encryption key.
For both WPA2 Enterprise and WPA2 Personal re-associations. In both cases, the eight messages passed between an AP and a client device for authentication, association, and the four-way handshake are reduced to four messages.
Another thing to note is for all three of these specifications if you have mixed clients where some support them and other don't it is recommended to disable fast roaming since the older clients don't understand.