I see the problem too when i start up WR21xx and ctrlX at the same time. In my application i just want to have access to the webpage of the ctrlx. I have the same problem as described with Codesys webvisu. The problem is, that the ctrlx takes to much time to startup. So the easiest and fastest way to get rid of the problem is to delay the start of the WR21. This could be done by a time relay, which switches the power for the WR21 some seconds (at minimum 10 seconds) later on.
Maybe there is a software option to delay the startup of the OS, but i am not a specialist in Android 10. In Windows there is a possibility to delay the start of the OS by using the following command e.g. in the autoexec.bat:
C:\>ping 127.0.0.1 -n 10
maybe someone found something similar for Android.
I will talk to the guys who are responsible for the kiosk app. But in my experience a solution on the app side will take some time.
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