
AVM FRITZ!Box 6660 Cable
AVM FRITZ!Box 6660 Cable
If by reserve you mean that you can surf with 3 devices at the same time, then the 1200 would be just about enough. Most of the time you don't get 550. If you want the full power between your Fritz elements, you have to make a bridge. But I don't know if that works with them. One mesh at least.
So: I operate the box behind the (Giga) Connect Box, this in Beidge mode. I switched the FritzBox to the mode in which it receives its Internet via LAN1. Then everything worked.
Yes, it is possible. To be able to switch the upc Box to bridge mode, it must be switched to IPv4. To do this, contact upc Support. Without IPv4, the changeover option is not even in the menu of the upc Box.