Hello,
I have some problems registering my devices but only those in Android 7 (here they are Huawei P9 Lite). I have NO problem with those in Android 8,9,10 and above.
I think that the problem comes from my let's encrypt ssl certificate. I managed to register devices in Android 7 at the beginning of January but since mid-February it has been impossible.
Last enrollment of android 7 device (same device as today) :
Error message today with the same device
I check other Q&A (like https://qa.h-mdm.com/7394/cannot-enroll-device-https-trust-anchor-certification-found), we have the same symptoms but not the same error source.
Do I need to disable let's encrypt or use another certificate or another idea ?
Thanks