My Amplifi Alien and enterprise Ruckus R650 are both WiFi 6 (not E). The ruckus has the ability to change anything. I extensively tested both, and tried what worked for you. Unfortunately the issue would manifest again. Here's what I've done, separately on both routers.
I was within 5ft during testing, changing the SSID to where only my testing devices were connected.
- Tried toggling and disabling broadcasting.
- Tested at an Apple Store.
- Verified it's occurring on my MacBook M2, and Mac Mini M2 Pro.
- Separated the 2.4ghz and 5ghz bands.
- Tested 20/40/80 channelization.
- Ran a site survey, trying multiple channels with the least noise (only 1/6/11 for 2.4ghz).
- Tried disabling the radios. 5ghz on, 2.4ghz off. And 5ghz off, 2.4ghz on.
- Disabled WiFi 6 radio, leaving 5ghz on.
- Ruckus AP has a gateway mode. Tried that directly connected to WAN.
- Ruckus AP is PoE+, tried an external power supply with PoE+ disabled.
- Ruckus AP is capable of changing the TX power. Tested from -1 to -10dB (max).
- Tested with WPA3/WPA2/Radius/Open.
- Restored default configuration.
- Blocked Multicast/Unicast traffic.
- Disabled hairpin NAT.
- Disabled UPnP 1/2.
In every scenario, I had an older Thinkpad T480s pinging my enterprise L3 Aruba switch. Its response times were consistent, 1-5ms. Every Apple device, sporadic from 5-350ms. Hard wired, .2-.5ms on Apple and Windows.
I honestly believe this is due to the adapter card aggressively entering PowerSave mode. I'm still looking into it, but the pmset command may have a way to disable that.
I was able to figure out how to run a sniffer pcap report, but in WireShark i've been unable to add the "PWR MGMT" column as shown in the thread from my last post. Which is essential.
For those unaware, holding down option and clicking on the WiFi icon will show diagnostic selections. Opening "Open Wireless Diagnostics" will give you more advanced debugging under the "Window" menu drop down (where you'll find sniffer).