I reported this behavior to Ray quite some time ago. I have an app I wrote in visual basic when the first hardware came out. It worked all along until the 2.221.
This hardware version 3 with newer version firmware above 2.19. My 2.3 and 2.2 hardware was not effected becuase Ray said that these were pretty much EOL. But recently their was a firmware 2.2.1 made available for the 2.3 hardware. So the 24 controller down below is 2.3 hardware with the new 2.2.1 firmware and it still works with my app. So hopefully this helps Ray troubleshoot the difference with the two controllers now on the same firmware. Ray let me know if you want me to try a test firmware or something. It would be nice to get this fixed since my app would backup and do mass updates with all 22 of my controllers at once. It would be nice is Samer would add these features to the APP. Mass backups of the settings of all my controlers. Display the hardware and Firmware and rain delays for the app. I have reached out to him a long time ago, but this just never was included.
Indx: 200 – HTTP/1.1 413 Request too large <— Hardware 3 AC with Firmware 2.2.1
24 Scanning For Controller: 192.168.3.24 <— Hardware 2.3AC with Firmware 2.2.1
Controller Found: 192.168.3.24