@Tyrade Why did you create 2 SSIDs? While you can create one SSID for both bands and enable Band Steering.

@Criggn Is your EAP650-outdoor connected via wired or meshed?

@Bruce_A I would say wait until the new firmware of ER8411 becomes available. The workaround as you said to downgrade the controller's firmware, but this is a lot of work.

@Bruce_A Please find the below attached screenshot. The lastest firmware version of ER8411 is compatible with Omada controllers ver. 5.5. In other words, the features you're looking for will be...

@Bruce_A Can I ask you a question? What is the version of your software controller?

@db0330 I see that you're running the software controller on a PC. is it windows based computer? If so, can you try to disable windows firewall and any installed antivirus on that computer?