I just received my EAP225-outdoor to install outside and connected directly to the router.  I'm right next to it and the connection speed is terrible.  I thought I would check for a firmware update before returning it and see if that resolved the problem.  However, it is very unclear which firmware update I need because that all reference omada controller and the firmware versions are 5.xxx and my current version is 1.20 build 20200422.  That seems fishy.  Which one should I use to just update EAP firmware without the omada controller?

PS, I chose AC500 as the model because AEP225 was not available in the dropdown selections