If they sent you a newer one that is supposed to work better then I don't guess it would not hurt to give it a honest chance. Truth be told I actually like the Motorola 2210-02-1006 modem. Mine is working just fine and I have had no troubles out of it. I modified it by cutting out the recessed Motorola logo on the top to let the heat out. This modification would void the warranty, but I don't care.
My Motorola 2210-02-1006 is serial number 3672xxxx. Mine has a Texas Instruments AR7 chip (TNETD7100ZDW).
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It will work just fine as a "Bridge" modem. »
AT&T Southeast Forum FAQ »
Bridge Mode for the 2Wire 2701HG-BI have installed several of the 2Wire 2701HG-B Wireless Gateways for my customers and they have ran great, have great DSL statistics, and the customers are happy with them.