i had the same problem but only with 7g pre1.trx firmware
Sometimes after rebooting router resets to default settings (and prints out quick setup prompt after login). It worked fine for two months running 1.9.2.7-7f.
Chance of reset increases when increasing antenna power or adding a USB key.
Could this symptom be related to recent power failure? If shock has damaged power supply would nvram resets reflect that?
Thanks, Buld
i had the same problem but only with 7g pre1.trx firmware
The problem is only when you set the power higher than 80mw.