My experience at green.ch with another third-party router (Zyxel PM7300-T0 in the standard configuration as a bridge, i.e. DHCP lease is queried by the firewall). In my opinion, however, this should also apply to the set-up with the Fritz!Box or other third-party routers, see also
https://en.avm.de/service... regarding the setting of the VLAN)
- VLAN 10
- No DHCP options
- No MAC address cookies (as with Sunrise, for example)
I have previously tried various options. I haven't even connected the router provided by green.ch yet. I received the activation code via telephone support.