i don't know when this problem start, but i know it was working few weeks ago over the ip/admin, pi.hole/admin or raspberrypi/admin. now it works only with pi.hole/admin or raspberrypi/admin but not with the ip anymore. i tested it on my pc witrh firefox and on my android phone with chrome, opera and also firefox. but always the same. not working over the ip adress. the only thing i did was update pihole few days ago, lighthttp to 1.4.57 and then to 1.4.58 from 1.4.55 or 1.4.56 (i don't know which version i had before. i think it was 1.4.55) and update openssl from 1.1.1h to 1.1.1i.
i didnt changed nothing in this file. the file was untouched since 1,5 years and worked without problem. what will be the best solution to fix this problem? revert back to older lighthttp version? or change something in the extenal.conf file?
i reverted lighthttp from 1.4.58 back to 1.4.56 and the problem was the same. then i reverted it back to 1.4.55 and now it works again. so there must be a problem with lighthttp >1.4.55 or something in combination with pihole.
here u can see the changelog from 1.4.55 to 1.4.56 but i don't no where the problem could be: