Dear @Fabieuz,

Fabieuz wrote

After firmware update at the latest version available on 2021 April 2, I notice this strange randomic behaviour that happens every 24/48 hours: all devices connected to one of the three SSID broadcasted from my eap are disconnected. 

As I know, the latest firmware for EAP110-Outdoor is Published on 2020 Dec.18.

Where did you get the latest version available on 2021 April 2? Could you paste the link to show the download link?

What's the current firmware version of your EAP110-Outdoor? Is your EAP110-Outdoor managed by Omada Controller?

The SSID is ever the same. The other SSIDs work fine. To resolve this issue I need to power down and restart the eap. I also tried to reset the eap from hardware reset button and reconfigured it but the issue in yet present. Any suggestion? 

From your description, there are 3 SSIDs configured on the EAP110-Outdoor, devices connected to one of the SSID would be disconnected every 24/48 hours. Do you mean that the issue only exists on one specific SSID? How are the 3 SSIDs configured? You may provide the WLAN configuration for checking.

Dear @Fabieuz,

Fabieuz wrote

Follows some printscreen to help you in your analysis. Consider that only for one ssid (named DOMOTICA_OUTDOOR) exists this issue. I have in totan 4 ssids (not 3 as reported in my previous post) configured on my eap with same parameters. Moreover, when ssid works, there are 20 devices connected to it.

What devices are usually connected to the SSID "DOMOTICA_OUTDOOR"?
Is there showing any error message when those devices failed to connect the particular SSID?

In picture1, I notice that SSIDs named "IPTVCC_OUTDOOR" and "DOMOTICA_OUTDOOR" both have the SSID Broadcast disabled.

If you connect the device that failed on SSID "DOMOTICA_OUTDOOR" to the other SSID "IPTVCC_OUTDOOR", would it connect well?

For your case, you may enable SSID Broadcast first and see if the devices can connect to "DOMOTICA_OUTDOOR" successfully.

Ensure that you get good signal strength from the SSID, if it cannot connect either, try changing the Encryption to AES, then Security to None for further checking. If it connects finally, you can disable SSID Broadcast as you like and monitor the connection.