I have a XE75 Deco system. I've run the interference optimizer, on the latest firmware, they are all on the same (primary/non-guest, non-IoT) network, and have set my four test devices to have "high priority" in the app.

I've been testing from four devices:

• A new M3 MacBook Pro (on wifi 6)
• An older Dell XPS running Windows 10
• An older 2015 MacBook Pro
• A home server running Unraid, which is connected to the base Deco node by a cat6 cable. (Per specs, each node has three gigabit ports.)

As a baseline, speedtest.net currently gives about 114mbps download speed from the open internet.

I'm using the iperf3 tool to measure network speeds. Between any two of the above devices, I'm getting transfer rates of about 47 mbits/sec -- that's less than 6 mbytes/sec. This can't be as designed.

Any ideas? This is really bad, and basically makes my home storage server useless. It took an hour to transfer 20gb!