Modified CFE.BIN some GS models will brick" the second you hit reset to factory defaults.
I suggest you use a jtag to flash cfe.bin to your router to avoid this issue in the future it's for a WRT54GS v2 but should work with your version 1.1.
This here is a modified CFE.BIN where boot_wait is on, also the CFE.BIN was changed the
sdram_init=0x000b
to
sdram_init=0x010b