Yes, I did restoring the factory settings, and resetting everything after upgrading.
Steps to reproduce:
Upgrade to 384.19, enable https and set a LAN IP address and host name different from the default, reboot, and try to generate a new certificate.
The certificate is still the certificate created before. the verification method: check the host name, IP address, and creation time of the certificate.
Generate a new self-signed certificate.
I reset the router after every major upgrade. before that, there was no problem with the certificate generation.
Until 386.1-A3 there is still this problem. I think this problem may be caused by changes to the certificate in 384.19.
This issue will be fixed in 386.1-B3
AX88U is fine +1 its also there on my AX88U.