Posted: Tue Nov 27, 2018 18:51 Post subject: Linksys EA6900 no boot after reboot
Hi I have a problem with one of my Linksys EA6900. Whenever I reboot it, it does not boot up. This means no ping on 192.168.1.1 or 192.168.0.1 and the Linksys logo is blinking all the time. The only method is to bring it up(haven't tried otehers) is to leave it for an hour and by pressing reset and WPS button power it up.
It starts with TTL=100 and then the normal TTL=64. I can go to the webGUI set everything but when it loses power I have to do it again.
Posted: Tue Nov 27, 2018 21:22 Post subject: Re: Linksys EA6900 no boot after reboot
nizmot wrote:
The only method is to bring it up(haven't tried otehers) is to leave it for an hour and by pressing reset and WPS button power it up.
It starts with TTL=100 and then the normal TTL=64. I can go to the webGUI set everything but when it loses power I have to do it again.
Sounds kinda like the R7000 Xwrt (...I think) issue where only of the updates corrupted the CFE. Have you run any other third party f/w on this?
Base on your story,you may have new or old ea6900 with OEM cfe with history of 32 kb nvram bugs. Then you installed ddwrt without problem, but you may not know that if nvram run for while and nvram over flow 32 kb,CPU panic and bootloop.
Also devinfo partition may get corrupted due nvram erase with also erase this mtd.
Devinfo....reconfig vars and devinfo commit. Or flash with fixed voxtex cfe.
I have an Ea6900 v11 with stock cfe. Why would I encounter the 32kb bug? Just to understand for future flashing.
NVRAM is used to store parameters and information. E.g. traffic monitoring, VPN key, etc would use a lot...but I wouldn't think that rebooting would cause this, as that is normally done to -prevent- this kind of issue. What features are you using? Try manual setup after the reset, with minimal features...if you already have done that, you could try the modified CFE, however, that will affect how you do upgrades.
See the wiki and referenced install guide therein.
Is your other EA6900 the same revision, configuration, and build? And has no issues? You could just have a hardware failure...does dmesg shows anything? Really, you should connect serial and check your boot messages for an issue. _________________ #NAT/SFE/CTF: limited speed w/ DD#Repeater issues#DD-WRT info: FAQ, Builds, Types, Modes, Changes, Demo#
OPNsense x64 5050e ITX|DD: DIR-810L, 2*EA6900@1GHz, R6300v1, RT-N66U@663, WNDR4000@533, E1500@353,
WRT54G{Lv1.1,Sv6}@250|FreshTomato: F7D8302@532|OpenWRT: F9K1119v1, RT-ACRH13, R6220, WNDR3700v4
0x0 to 0x80000=0.5MB; 0x80000 to 0x180000=1MB; 0x180000 to 200000=0.5MB
--> ''boot''------------------nvram-------------------devinfo------------
Creating 6 MTD partitions on "nflash":
0x000000000000-0x000000080000 : "boot"
0x000000080000-0x000000200000 : "nvram" <----- nvram partition
0x000000200000-0x000001f00000 : "linux" <-----fw backup
0x000001f00000-0x000003c00000 : "linux2" <-----fw upgrade
if you erase nvram or 30/30/30 in old fw then it also erase devinfo partition which start from 0x180000 to 200000=0.5MB.
Wish my grammar is correct or need someone help, Many thanks!!!!
I don't like very much google trans for the whole paragraph, i dont want one beautiful day, i see a post from another "deslatha" with clone AI come from my the whole reply paragraph say happy Holliday to me and you!!!
Due your router may have lost devinfo partition, so you can looking for or ask someone a backup. you also may copy all nvram tune up come from my news post from r7000 and then paste into xvortex ea6900 with open in cfe_edit.exe. few change in wps, serial number etc... as you wish and want.
note:
* must be keep old and origin gpio ....wps, reset,usb.....remember gpio or you may bricked your router......do not flash if you are not clear what you doing.
Ok I have tried many times to flash it and it is getting worse
I have no ping and it only boots after it sits for a long time whitout power. If I try to reset it all the leds are ON.
It looks like I will have to revive it with serial connection. (PL2303HX serial ordered)
Anyone has a pinout for EA6900?