1. I have RB951G-2HnD (out-of-warranty) and an old backup file I wanted to restore.
2. I have restored the backup file to RB951G-2HnD
3. it worked for a few minutes, I logged into WinBox and I was checking the actual config via /export in Terminal.
4. then the connection was lost and all LAN ports started to reset itself every 5 seconds (going down and up every 10 sec), impossible to establish connection to PC again.
   Can't use WinBox anymore, no LAN was working and WiFi was disabled in the backup. I tried different computers
5. I made a reset with reset button
6. Settings was reset, but the problem with LAN ports going down persisted :-O The only way to use winbox was via WiFi.
7. I fixed it by Netinstall, clean ROS 6.42.2 succesfully installed, the problem has gone, everything back to normal, so I have a device prepared for backup restore again.
8. I restored the backup again.
9. And the issue was back. LAN ports going down every few sec and I was unable to connect to Mikrotik.
10. I decided that I give up with this backup, it does not work.
11. I made a reset with reset button
12. Settings was reset, but the problem with LAN ports going down persisted.
13. I'm trying to fix it again with Netinstall, but unable to do so. The first beep comes after 35s, not after ~15s like on other RB951G's, and it always do a standard boot no matter what. Not appearing in Netinstall anymore.
    (have tested another Mikrotik: I can see another RB951G-2HnD in Netinstall after ~16s of holding reset button. I'm actually releasing it just before, or just after first beep. No other beeps after that, and I see it in Netinstall every time. So the setup I use for Netinstall connection is ok, the problematic mikrotik device is not.)
14. I can access the router via WinBox (using WiFi) so I tried system routerboard settings set force-backup-booter=yes, but with no luck.

1. The LAN ports are resetting themselves every few seconds, no connection via Ethernet is possible
2. WiFi is working, WinBox connection works using WiFi
3. Resetting configuration from WinBox does not solve the problem with restarting LAN ports.
4. I'd like to erase it with Netinstall to remove the issue with LAN ports, but I can't access the router with Netinstall.
   It seems that it started to ignore both reset buttons completely (there is a reset button and jumper hole).
   
   loop.gif
    
   Q1: Can a backup completely brick the router?
   Q2: What can I do next to unbrick it?
   
   
   Thank you

You cannot restore a backup to anything apart from the EXACT SAME ROUTER that it came from. You cannot restore backups to routers even of the same type.

Q1: Can a backup completely brick the router?
Q2: What can I do next to unbrick it?

you need to export config to file and then execute that on the other via terminal

• I can access the router via WinBox (using WiFi) so I tried system routerboard settings set force-backup-booter=yes, but with no luck.

I'd like to access Netinstall to fix it again but I can't.

/system routerboard settings set boot-device=try-ethernet-once-then-nand

/system reset-configuration

If you can access it, then it's not bricked.

With export you have chance to review every single setting ...

Win10 and Win XP. Netinstall works for my other RB951G-2HnD's, not for the bricked device.

I had the same problem after an update due to power outage during restart after update.
It was saved by netinstall.
...

Hi all

I have problem after upgrading my RB951Ui-2nD to New Version (6.40). It beeps every 6 seconds. It doesn't get picked up in Netinstall. Also, Windows cannot keep a LAN connection to the RB, it keeps on Identifying and then cable unplugged (loop). This occurs on all ports. Is there any solution to get my RB working again. I have done a reset as well with nothing.

Any advise will be appreciated.

Regards
Galahad.

Anytime I release the button it continues to reboot itself every 10sec (all LEDs flash + single beep). It never shows up in netinstall. When I keep pressing the reset button indefinitely, it constantly reboots every 36 seconds (3 sec after the single beep).

Unsetting of this option is only possible from RouterOS. If you forget the RouterOS password, the only option is to perform a complete reformat of both NAND and RAM with the following method, but you have to know the reset button hold time in seconds.