Installed libreElec on a Raspberry 3b+ a couple of months ago, added tvheadend and set it up with hdhomerun. After very little hassle it just worked - and wife was happy. My and wife are the only ones on this network so I configured no login for everyday user - and a password for accessing admin.
Fast forward til yesterday where I discover, that I can no longer access the tvheadend webinterface on the :9981 port. Firefox keeps giving a native browser login popup.
It does not accept my previous password and if I escape I get the 401 Unauthorized, with Default login and New login links show behind.
To enable access I did a workaround and edited /storage/.kodi/addons/service.tvheadend42/bin/tvheadend42.start like below:
only the version without any access control at all, will allow me to access tvheadend
Any ideas on what could be the problem?