I'm glad to read that you have managed to get PPPoA working. Was there anything different you did to achieve this?

Since you have been using the Netgear DGN2200, might I suggest that you look at other Netgear routers first?

All their relative manuals are available on-line so you could download them to confirm that they are compatible. Also there is a good forum available which other people contribute towards, not Netgear though.

The Best Wireless Internet Routers From NETGEARŪ

Wireless Router & Modem Gateways - NETGEAR Forums