I'm late to the party, but in summary, the 802.11b works for me, while none of the other settings work. I did not have to change the max connect settings, and the packet flooding setting seems to make no difference. My dsl speed is 6mbps, so the 11mbps max for 802.11b should not be a problem.

I haven't read the entire thread, so please let me know if I missed anythingI need to know. I can see no reason to replace the modem, although it looks like Best Buy has expanded their selection of dsl modems...hmmm.

I have thee of these 2701HG-B routers now, sent to me by ATT in attempt to solve the problem. The support folks are nice, but this seems like a major oversight on their part.