- I have deleted all DNS entries on the router. --> no change
- The other option of setting 192.168.0.10 (Amahi Server) twice (primary and secondary DNS server) is prevented by the software of the router. Secondary has to be different from the first. Therefore, primary 192.168.0.10, secondary *void* --> no change
After two weeks of close observation I have found another pattern:
Computers (my ultrabook, dad's mac, host system of amahi) can deal with dynamic mode, but all other devices (incl. iphones, TV's) need to be set to static and point to 18.104.22.168 ...