Hi everyone,

I’m experiencing unexpectedly low Wi‑Fi performance with my EAP670 and would appreciate any insights from the community. I’ll keep this as short and clear as possible.

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1. Hardware & Firmware Versions

• Omada Controller OC200: 2.25.11
• Gateway ER8411: 1.3.6
• EAP670: 1.3.7
• Switch: ZX300S‑16T2XS (16×2.5G + 2×10G SFP+)
• Client device: MacBook Pro (Wi‑Fi 6, 2×2 “Tahoe” chipset)

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2. Network Topology

• ER8411 ↔ Switch via 10G SFP+
• EAP670 ↔ Switch via 2.5G RJ45
• Server ↔ Switch via wired connection
• All cables tested and working properly
• Wired LAN performance is perfect

Backbone is 10G + 2.5G, no bottlenecks on the wired side.

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3. The Issue

When transferring files from a wired server to the MacBook over Wi‑Fi, I consistently get:

• ~26 MB/s (~208 Mb/s)

This is far below what I would expect from an EAP670 + Wi‑Fi 6 client on 80 MHz.

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4. Wi‑Fi Configuration (EAP670)

• Band: 5 GHz
• Channel: 149
• Channel width: 80 MHz
• TX power: 25 dBm
• Security: WPA3‑Personal
• No bandwidth limits configured
• AP uplink confirmed at 2.5G

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5. Measurements

• PHY TX rate (Omada): ~290 Mb/s
• macOS “Transmit Rate” shows similar values
• Throughput (~208 Mb/s) matches the low PHY rate

However, with this hardware combination, I would normally expect:

• PHY: 600–1200 Mb/s
• Real throughput: 400–800 Mb/s (50–100 MB/s)

So the Wi‑Fi link is clearly modulating much lower than it should.

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6. What I’ve Already Checked

• AP is definitely linking at 2.5G
• Switch ↔ ER8411 link at 10G
• Cables remade and tested
• Tests performed close to the AP
• Reviewed features like:
  • Airtime Fairness
  • Band Steering
  • Minimum RSSI
  • Fast Roaming
• No wired bottlenecks anywhere

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7. My Question

Why would the EAP670 + MacBook Pro (Wi‑Fi 6, 2×2) be stuck around 290 Mb/s PHY, even with:

• 80 MHz channel width
• Channel 149
• Strong signal
• Clean 2.5G uplink
• Latest firmware on all devices
• WPA3‑Personal enabled

Has anyone seen similar behavior on the EAP670?

Could WPA3 be impacting PHY rates on this model?

Any recommended settings for channel, TX power, or advanced features?

Thanks in advance for any help or suggestions.