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TomatoRAF Defaulted Itself - How?

Discussion in 'Tomato Firmware' started by mealto, Jun 12, 2014.

  1. mealto

    mealto LI Guru Member

    So noticed this morning there was no Wifi. Attempted to log in to TomatoRAF and could not using the normal credentials. Tried the default login and got in!

    Looks like all the settings went back to the default state. As if someone cleared the NVRAM. No one can access this router except me. Unless it was a hack, I cannot see how this could happen. I did install a powerline adapter a while back but even if the neighbour has access to my network, they would still need to crack the login creds, which in my opinion is stronger than most out there.

    I did notice there was heavy usage yesterday (from me), would this have caused the router to hang and default back to original state? I don't think so but wanted to see if anyone else has had this happen to them. Very odd indeed.
     
  2. Spyros

    Spyros LI Guru Member

    Someone pushed the reset button
     
  3. mealto

    mealto LI Guru Member

    That is a possibility but like I said, I am the only one who has access to this router either through the log in or physically. So it's unlikely. Anyone else seen this before?
     
  4. fubdap

    fubdap Addicted to LI Member

    Not sure if it is the same situation as mine. When I upgraded from xx.e to xx.f on my N66U, my nvram was erased even though I did not check it to erase. I did not want to configure by hand, so I went back to xx.e from backup.
     
    Last edited: Jun 12, 2014
  5. mealto

    mealto LI Guru Member

    Thanks for more possibilities. I did not upgrade RAF, it just seemed to have defaulted itself. Is that even possible?
     
  6. BikeHelmet

    BikeHelmet Networkin' Nut Member

    What router do you have?

    On Toastman firmware I had a unit restore default settings after a too-large OpenVPN cert/key overflowed nvram.

    -BikeHelmet
     
  7. mealto

    mealto LI Guru Member

    It's the E4200. The router was running for about 5-6 hours full bore with 3-5 MB/s download speeds. Grabbing a bunch of Microsoft ISO's from Digital River and uploading video files all over the place. Do you think it choked and did this too?
     
  8. Grimson

    Grimson Networkin' Nut Member

  9. mealto

    mealto LI Guru Member

    Another possibility but there does not seem to have been a power outage. I am starting to think this E4200 may be starting to go, oh no! At least no one else seems to be thinking it's a network compromise issue.
     
  10. ghoffman

    ghoffman Addicted to LI Member

    are you using hte correct power supply? i have had a router flake out under high power load (max cpu and wireless activity) when using an underpowered power adapter. for me, this is possible because i have a bnck of old routers and adapters in a constant stae of swap/test......and human error.
     
  11. mealto

    mealto LI Guru Member

    Thanks for the info ghoffman. Now that you mention it, that could be an issue as well. For this unit, it is the original power supply. I had a wonky WRT54GL at one point because the power supply was dieing. I hope this is not the case for the E4200. This unit for me has been rock solid, especially with Tomato on it. I think I just need someone to tell me that my network has not been compromised :)
     
  12. noyp

    noyp Network Guru Member

    one incident where a router went back to its default config is when it's nvram space is 100% fully reached
     
  13. Holy_Hunter

    Holy_Hunter Serious Server Member

    i had this a few times allready. now im looking forward to put everything i can to a usb drive and get more free nvram.
    but i still dont know how to do so... any advise ? is there a easy to understand tutorial ?
     
  14. mealto

    mealto LI Guru Member

    So for future references, how do I know when NVRAM filled up 100% and caused the router to revert back to default settings? How does one even check this?
     
  15. kthaddock

    kthaddock Network Guru Member

    Status => overwiev => System => NVRAM 32.00 KB / 4016 (12.26%)
    Look and see how much free NVRAM you have. If you use OpenVpn you can migrate your keys to JFFS or MNT to save space. Server keys can save ~5KB. There is more things to do when you need space eg iptables rules can consume alot of it.
     
  16. profylr

    profylr Network Newbie Member

    I just installed tomato-E4200USB-NVRAM60K-1.28.9014MIPSR2-RAF-v1.3g but the default login is not working? Can you tell me what its supposed to be? I thought it was admin/admin
     
  17. Siff

    Siff Serious Server Member

    ^^^ Should be root/admin after NVRAM reset. If you have made a "dirty" upgrade from another Tomato verision/build, then your old login credentials might still work; if you have made a "dirty" upgrade from dd-wrt, you have to erase the NVRAM since dd-wrt stores the password encrypted, but is using the same NVRAM variable.

    In all cases it is a very good idea to erase the NVRAM before and after firmware upgrade.

    Hope this helps.
     
  18. Marcel Tunks

    Marcel Tunks Networkin' Nut Member

    To expand on what Siff said, if you went from dd-wrt to Tomato on that router then you can do a 10 second hold on the reset button to reset the password to admin/admin or root/admin. Both should work in the GUI.

    Sent from my HTC One_M8 using Tapatalk
     
  19. Toastman

    Toastman Super Moderator Staff Member Member

    The most common reason for loss of NVRAM settings is the loss of power while the router is in the process of booting. In some countries where power loss is common, it is advisable to use a UPS if router stability is essential.

    If you want to try this, sit and repeatedly pull out the power plug at different timings while rebooting and eventually most routers will lose config.

    This is the reason that Toastman firmware has DHCP disabled by default, and why I never use 192.168.1.1 for the router LAN address, always using 192.168.1.2 up... This will stop such a broken router/access point rebooting in default configuration, which could result in 2 routers with the same address, both issuing different IP addresses to clients by DHCP.

    If this is done, any router or Access Point that reboots to default settings appears on 192.168.1.1 with DHCP turned off where it can not do any harm, and is easily found and reconfigured.
     

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