I use a Asus N66u but for the money you really can't go wrong with the N56U, they are both immense and about the best you can get right now.
Hi i'am getting infinity 2 installed this week and i have a Billion 7800N router too do you get better speeds with it compared to the HH?
I am awaiting my installation and plan on using the Apple Extreme Airport with the Infinity modem - has anyone else had any success with this configuration?
I also swapped to an Asus RT-N66U and did notice better throughput, although the negotiated speed is about the same. On speedtest.net throughput used to be very variable, now I get a solid flat line which proves to me that the HH had insufficient CPU to cope. WiFi reception is much improved and I can get a connection from the other end of the house, which I couldn't with the HH. It's also been on for 48 days straight without need for a reboot, unlike the HH which was nearly daily. With QoS enabled on the Asus I find I get very reliable streaming and multiple downloads, etc.
I use my AirPort Extreme with no problems using the following settings
First, ensure modem is synced (POWER and DSL lights lit
1. Openreach modem to WAN port on Airport Extreme (either direct or via Powerline). Modem LAN1 light should blink abit.
2. Spare Airport Extreme LAN to LAN or setup wireless.
3. Airport Utility/Select Device/Edit
4. Internet Tab
Account Name firstname.lastname@example.org
one blank space (tap spacebar!) for password
Service Name - Your choice
Disconnect if Idle - Never
Primary DNS - leave blank for BT DNS Servers or enter others manually (OpenDNS, Google DNS etc)
Secondary DNS - same as above
Wireless - If using Wireless, ensure you use WPA2 Personal (others can effect security/speed)
NetworkRouter Mode - DHCP and NAT
Tick Enable NAT Port Mapping Protocol