Just for information.
I had an ipfire on NanoPi R4S running with LAN accessable GUI and SSH, until I let pakfire update to 184. After this, ipfire seemed to work as before, but browser as well as PuTTY could not connect any more, only serial console was still alive.
Had to do a completely new SD with core 184 to get Web-GUI and SSH back, but needed to do anything I was used to use before, from the start. Especially I had to install others as green and red networks again. They not seem to be saved by any of save possibilities.