Hello,
after upgrading, I can not acces to Luci interface through https, I have set before.
Certificate is untrusted.
I do not remember, but I think, I have http connection to Luci disabled.
Can I connect via SSH and enable http connection?
If you have not changed ssh settings, you can connect via ssh with "ssh root@192.168.1.1" (use your ip, if it's not 292.168.1.1) and from there edit /etc/config/uhttpd with "vi /etc/config/uhttpd" (see a vi/vim manual for it's usage)
Also see https://openwrt.org/docs/guide-user/services/webserver/uhttpd for detailed webserver config options.
So,
I set "option redirect_https to 0"
Now, I see page with link to Luci Configuration Interface, but, links looks like, do not work.
Before, in 19.07, borwser automatically redirected to login page, but now, it does'not.
After clicking on the link, it does not work too.
For what it's worth, along with its certificates, the router's https cookies in the browser need deleting too. This happens to me when I log in and out of openwrt routers (not on same network) with same IP address (192.168.1.1, for example).