Hi  @YuriyB 

Thanks for posting here.

It's not easy to pinpoint the cause of this phenomenon. We will pay attention to this kind of feedback and test more.

Here are some recommendations for your scenario.

Maintain Current Best Practice :

• Continue to keep the 2.4GHz transmit power lower than the 5GHz power. This is the simplest and most effective solution to the problem.
• For example: 2.4GHz: 15-16 dBm, 5GHz: 20-23 dBm. 5GHz signals attenuate faster and require higher power for equivalent coverage.
• There is no need to pursue equal power settings for both bands. This has no practical benefit. The planning objectives for each frequency band are different.

Fine-tune Power and Channel Planning:

• 2.4GHz: The goal should be “reliable coverage, not necessarily the strongest signal.” Set power between 15-18 dBm, use a 20MHz channel width (to avoid interference with neighbors), and manually select the least congested channel from Channels 1, 6, or 11.
• 5GHz: The goal is “high performance.” Set power between 20-23 dBm, use an 80MHz channel width for high throughput, and prioritize channels in the UNII-1 (36-48) or UNII-3 (149-161) bands. These channels typically have less interference and regulations often permit higher power.
• In your EAP management interface, disable “Auto Power Adjustment” and manually configure the values mentioned above.

Optimize SSID and Client Steering:

• Set different SSIDs for your 2.4GHz and 5GHz networks (e.g., MyWiFi_2G and MyWiFi_5G).
• Manually connect all high-speed devices (phones, computers, TV streaming devices) to the 5GHz SSID.
• Connect only IoT devices (smart plugs, sensors, etc.) or legacy devices to the 2.4GHz SSID.
• This approach allows you to actively control client connection behavior and prevents devices from “sticking” to the 2.4GHz band when a single, combined SSID is used.