@Obrenner Same issues here... Following for a solution....

  @MeneerJeep 

Same issues with eap610 v1.0, after launched the firmware update, I've lost it...

  @GianfrancoPa 

Try deactivate 2.4ghz and try to downgrade. I do that with success after some try an fail. 

  @MR.S thanks for your reply! But... I've rebooted It many times:

But It Is always disconnected:

May this update have bricked it?

Thanks

  @GianfrancoPa 

I dont think its bricked. I do some test earlier and it always come online. Mybee you should hard reset and downgrade before you adopt.. 

  @MR.S 

I've hard reset the device, and now it is pending for mesh adopting. 

Even if I disabled the mesh option from Omada Control, I can not reach it by wire connection. It seems that the ethernet don't works anymore. In the same day I've update the firmware of the switch and I randomly get this error:

This Is the switch 

  @GianfrancoPa 

Hmmm, try adopt wirelessly and then downgrade firmware. 

I dont know what happendt to your access point strange thing

and I have same switch, after switch update i have to restart all switch. so try restart all switch if you have more than sg2428p

in my Case i had reset the EAP610-Outdoor. Configured it as an Single AP.

configure an Wireless Notebook ( 192.168.0.xxx) Connect to the the Fallback IP so i can connect and Mange the AP vie Wireless Interface. 

Seems that the Firmware has an bug by using Wired Connection?

Delete the AP in the Controller

Downgrade the Firmware to 1.1.3

adopt as new device

thats the Workaround how it works in my case.