Hi Omada Experts.

Since replacing an EAP673 with an EAP772 and relocating the EAP673, I'm experiencing persistent Wi-Fi connectivity issues. Specifically, devices are frequently disconnecting from my hidden SSIDs (xxxx_5G). After disconnection, the SSIDs become undetectable, requiring me to remove and re-add them on Windows and Android devices. Even then, connections are unstable, dropping within a minute or less. Some devices that previously connected to xxxx_5G (before added EAP772) now report 'Couldn't connect,' but can still connect to the general xxxx SSID.

Weirdly, I can connect to the xxxx_Guest network, which is also on the 5 & 6 GHz band, but it's not hidden and uses a guest portal for login authentication.

My setup includes an Omada Software Controller (v 5.15.8.2), an EAP673, and an EAP772, with several hidden SSIDs (xxxx_5G, xxxx, xxxx_IoT) and a visible Guest network. I've provided my current configuration below. I would like to keep 6GHz band because I do have devices that are capable.  Could you please help me troubleshoot this connectivity issue?

Current setup:

• Omada Software Controller (v 5.15.8.2)
• EAP673
• EAP772

SSIDs:

• xxxx_5G (5 GHz & 6 GHz, hidden) MLO enabled
• xxxx (2.4, 5 & 6 GHz, hidden) MLO enabled
• xxxx_IoT (2.4 GHz, hidden)
• xxxx_Guest (5 & 6 GHz, visible)

Settings:

• Air Time Fairness: OFF
• RSSI Threshold: -70 dBm
• Mesh: Enabled
• EAP LLDP: Enabled
• Fast Roaming: Enabled
• Non-Stick Roaming: Enabled
• AI Roaming: Enabled
• Band Steering: Prefer 5 GHz / 6 GHz

Security Settings:

• WPA-Personal
• WPA Mode: WPA3-SAE / AES