[jimnevins]

I am in need of help/advice on how to recover my router . . .

I was running stock firmware for a number of years and out of the blue, the router quit functioning and presented a solid-orange power led. I've connected my USB-TTL adapter to the serial header and can observe the boot process.
The boot process can be stopped to obtain a CFE prompt.

the following is what I see when I let the router boot up as far as it will go....

Decompressing..........done
Decompressing..........done


CFE for WNDR4000 version: v1.0.4
Build Date: Tue Nov 30 17:04:18 CST 2010
Init Arena
Init Devs.
Boot partition size = 262144(0x40000)
Found an ST compatible serial flash with 128 64KB blocks; total size 8MB
CPU type 0x19740: 480MHz
Tot mem: 65536 KBytes


Here is also what my NVRAM Reports . . .

CFE> nvram show
sb/1/ofdm2gpo=0x00000000
sb/1/elna2g=3
pci/1/1/legofdmbw20ul5ghpo=0x00000000
pci/1/1/pa2gw1a0=0x1772
pci/1/1/pa2gw1a1=0x1792
pci/1/1/maxp5gha0=0x3C
pci/1/1/pa2gw1a2=0x1710
pci/1/1/maxp5gha1=0x3C
boardrev=0x1101
pci/1/1/maxp5gha2=0x3C
pci/1/1/aa5g=7
sb/1/mcs2gpo0=0x0000
et0macaddr=74:44:01:47:99:11
sb/1/mcs2gpo1=0x0000
sb/1/mcs2gpo2=0x0000
sb/1/mcs2gpo3=0x0000
sb/1/mcs2gpo4=0x0000
pci/1/1/pa5glw2a0=0xFA98
sb/1/mcs2gpo5=0x0000
boot_wait=off
watchdog=3000
pci/1/1/pa5glw2a1=0xFA99
pci/1/1/ledbh12=11
sb/1/mcs2gpo6=0x0000
pci/1/1/pa5glw2a2=0xFA84
pci/1/1/mcsbw20ul5gmpo=0x00000000
sb/1/mcs2gpo7=0x0000
et0mdcport=0
reset_gpio=3
pmon_ver=CFE 2010.09.30.0
vlan2ports=4 8u
sb/1/triso2g=4
sb/1/sromrev=8
pci/1/1/mcsbw405glpo=0x00000000
pci/1/1/legofdmbw202gpo=0x00000000
pci/1/1/ag0=0
pci/1/1/ag1=0
pci/1/1/ag2=0
pci/1/1/legofdmbw205gmpo=0x00000000
gpio5=robo_reset
pci/1/1/legofdmbw20ul2gpo=0x00000000
pci/1/1/pa5gw2a0=0xFA72
sb/1/pa2gw2a0=0xFA22
pci/1/1/pa5gw2a1=0xFA7A
pci/1/1/mcsbw405ghpo=0x00000000
sb/1/pa2gw2a1=0xFA1F
pci/1/1/pa5gw2a2=0xFA88
pci/1/1/pa5ghw2a0=0xFAAC
pci/1/1/pa5ghw2a1=0xFA94
sromrev=8
pci/1/1/pa5ghw2a2=0xFAB2
boardtype=0xF52C
et1macaddr=74:44:01:47:99:12
pci/1/1/rxchain=7
lan_netmask=255.255.255.0
pci/1/1/maxp5ga0=0x3C
pci/1/1/cckbw202gpo=0x0000
pci/1/1/maxp5ga1=0x3C
sb/1/regrev=0
pci/1/1/maxp5ga2=0x3C
sb/1/ag0=0
sb/1/ag1=0
pci/1/1/pdetrange5g=4
sb/1/ag2=0
pci/1/1/mcsbw20ul2gpo=0x00000000
pci/1/1/pa2gw0a0=0xFE6D
pci/1/1/pa2gw0a1=0xFE72
pci/1/1/pa2gw0a2=0xFE74
pci/1/1/boardflags=0x00000200
vlan2hwname=et0
pci/1/1/tempoffset=0
pci/1/1/pa5glw1a0=0x162F
sb/1/extpagain2g=0
pci/1/1/pa5glw1a1=0x15ED
pci/1/1/pa5glw1a2=0x167F
pci/1/1/mcsbw20ul5glpo=0x00000000
xtalfreq=20000
sb/1/stbcpo=0x0000
pci/1/1/boardvendor=0x14e4
pci/1/1/mcsbw20ul5ghpo=0x00000000
boardflags2=0x00110402
sb/1/aa2g=3
sb/1/bwduppo=0
sb/1/txchain=3
boardmfg=NETGEAR
cfe_version=v1.0.4
pci/1/1/sromrev=9
wait_time=3
pci/1/1/extpagain2g=2
pci/1/1/legofdmbw205glpo=0x00000000
pci/1/1/venid=0x14e4
pci/1/1/pa5gw1a0=0x1677
sb/1/pa2gw1a0=0x1762
pci/1/1/pa5gw1a1=0x167C
sb/1/pa2gw1a1=0x18E7
pci/1/1/pa5gw1a2=0x1620
pci/1/1/mcsbw205gmpo=0x00000000
pci/1/1/pa5ghw1a0=0x15E7
pci/1/1/pa5ghw1a1=0x15F9
pci/1/1/legofdmbw205ghpo=0x00000000
pci/1/1/pa5ghw1a2=0x15CD
sb/1/boardflags2=0x00110402
pci/1/1/maxp2ga0=0x48
pci/1/1/maxp2ga1=0x48
pci/1/1/maxp2ga2=0x48
pci/1/1/boardflags2=0x00000000
sb/1/boardflags=0x00001310
pci/1/1/tssipos2g=1
sb/1/leddc=0xFFFF
pci/1/1/ledbh0=11
pci/1/1/ledbh1=11
pci/1/1/pa5glw0a0=0xFE97
pci/1/1/ledbh2=11
pci/1/1/pa5glw0a1=0xFE82
pci/1/1/ledbh3=11
pci/1/1/pa5glw0a2=0xFE84
pci/1/1/mcs32po=0x0000
clkfreq=480,240,120
lan_ipaddr=192.168.1.1
vlan1hwname=et0
pci/1/1/legofdm40duppo=0x0000
sdram_config=0x0184
pci/1/1/antswctl2g=0
vlan1ports=0 1 2 3 8*
pci/1/1/txchain=7
sb/1/macaddr=00:90:4C:02:50:01
sb/1/ccode=0
pci/1/1/aa2g=7
pci/1/1/antswitch=0
boardflags=0x00001310
sdram_refresh=0x183f
wandevs=et0
sb/1/cck2gpo=0x0000
sdram_ncdl=0x6a26162a
pci/1/1/pa5gw0a0=0xFE82
sb/1/pa2gw0a0=0xFE52
pci/1/1/pa5gw0a1=0xFE85
sb/1/pa2gw0a1=0xFEA0
pci/1/1/pa5gw0a2=0xFE7F
pci/1/1/legofdmbw20ul5gmpo=0x00000000
pci/1/1/mcsbw205glpo=0x00000000
pci/1/1/pa5ghw0a0=0xFE9A
pci/1/1/pa5ghw0a1=0xFE89
pci/1/1/pa5ghw0a2=0xFE98
sb/1/devid=0x4329
sb/1/bw40po=0x0000
pci/1/1/cckbw20ul2gpo=0x0000
pci/1/1/mcsbw205ghpo=0x00000000
pci/1/1/leddc=0xFFFF
pci/1/1/pa2gw2a0=0xFA34
pci/1/1/pa2gw2a1=0xFA31
pci/1/1/pa2gw2a2=0xFA4F
pci/1/1/extpagain5g=2
et0phyaddr=30
sb/1/pdetrange2g=5
landevs=vlan1 wl0 wl1
pci/1/1/ccode=0
sb/1/tssipos2g=1
sdram_init=0x0000
pci/1/1/mcsbw405gmpo=0x00000000
sb/1/antswctl2g=2
pci/1/1/pdetrange2g=4
pci/1/1/regrev=0
sb/1/ledbh0=11
pci/1/1/tssipos5g=1
sb/1/maxp2ga0=0x4C
sb/1/ledbh1=11
sb/1/maxp2ga1=0x4C
sb/1/ledbh2=11
pci/1/1/devid=0x4331
sb/1/ledbh3=11
pci/1/1/tempthresh=120
sb/1/cddpo=0x0000
pci/1/1/macaddr=00:90:4C:00:30:01
pci/1/1/mcsbw402gpo=0x00000000
sb/1/rxchain=3
boardnum=01
pci/1/1/legofdmbw20ul5glpo=0x00000000
sb/1/antswitch=0
pci/1/1/maxp5gla0=0x3C
pci/1/1/maxp5gla1=0x3C
pci/1/1/maxp5gla2=0x3C
pci/1/1/antswctl5g=0
pci/1/1/mcsbw202gpo=0x00000000
size: 4085 bytes (61451 left)
*** command status = 0
CFE>

Thanks in advance!

[barryware]

cfe> nvram erase [enter]

*** command status = 0

cfe> reboot [enter]


This is not right:

size: 4085 bytes (61451 left)

So.. erase nvram, reboot, and reconfig.

[jimnevins]

thanks for helping barryware...

i just ran nvram erase and reboot...this is what it returned.

CFE> nvram erase
*** command status = 0
CFE> reboot
Decompressing..........done


CFE for WNDR4000 version: v1.0.4
Build Date: Tue Nov 30 17:04:18 CST 2010
Init Arena
Init Devs.
Boot partition size = 262144(0x40000)
Found an ST compatible serial flash with 128 64KB blocks; total size 8MB
CPU type 0x19740: 480MHz
Tot mem: 65536 KBytes

Committing NVRAM...done
Waiting for reset button release...done�Decompressing..........done


CFE for WNDR4000 version: v1.0.4
Build Date: Tue Nov 30 17:04:18 CST 2010
Init Arena
Init Devs.
Boot partition size = 262144(0x40000)
Found an ST compatible serial flash with 128 64KB blocks; total size 8MB
CPU type 0x19740: 480MHz
Tot mem: 65536 KBytes


not sure what you mean by "reconfig"

[Malachi]

Reconfig means reconfigure your router, ie your settings.

[jimnevins]

understood. but how in CFE? I have not ethernet, eth0 isn't initializing

[Malachi]

After nvram erase and reboot you can't login into the router?

[jimnevins]

negative. all led's momentarily turn on then off, then the power led turns a steady orange. when I observe CFE during boot-up this is as far as it gets...

Decompressing..........done
Decompressing..........done


CFE for WNDR4000 version: v1.0.4
Build Date: Tue Nov 30 17:04:18 CST 2010
Init Arena
Init Devs.
Boot partition size = 262144(0x40000)
Found an ST compatible serial flash with 128 64KB blocks; total size 8MB
CPU type 0x19740: 480MHz
Tot mem: 65536 KBytes

I would expect to see more "echo's" of the boot-up process but nothing beyond what I've copied and pasted here...

[barryware]

[Malachi]

After you stop the cfe, get a tftp program ready with the stock firmware in it, I use tftp2.exe
At the cfe prompt type tftpd, then hit upload on the tftp program.

[jimnevins]

i can't ping 192.168.1.1 my PC's Enet port is configured to 192.168.1.2/24

[jimnevins]

can I tftp through the serial header?

[Malachi]

Set a static ip on your pc of 192.168.1.9, 255.255.255.0, 192.168.1.1

[jimnevins]

ok, changed Enet from 192.168.1.2\24 to 192.168.1.9\24

still no Enet connection status LED on router and still no ability to ping. changed cables too

[Malachi]

Idk. Barryware may have an idea.

[jimnevins]

thanks anyway Malachi!