After upgrade to one of the last 4 versions we frequently noticed the router set the admin password with blank and set the files directory to read only and more I can’t save a new configuration. Only after reboot the router goes back to normal status.
Is very dangerous, somebody can access remotely my router if password is blank. Please, I need request assistance to that problem.
I can’t save suport.rif because files directory is only read. I already noticed this problem in another router too.
I suppose this are one tilera device…
Wait for fix on 6.16
Yes, is CCR1036-12G-4S
I suppose right because is well known bug…
The fix are on upcoming 6.16
Hello,
I’ve found this topic after I posted here: http://forum.mikrotik.com/t/attention-disaster-v-6-17/79234/1
CCR1036 on 6.17 is still affected!!!
Come on guys!!! What’s happening with you??
ps. My pair user/password has been overwritten by admin/(null) AFTER TWO DAYS 
Every update a new surprise, sometimes it takes a while to appear.
It’s really sad… I’m afraid it’s time to think about moving to Cisco or other Juniper 
reinstall 6.17 using netinstall, that should solve the issue.
This also happen to me too. I used CCR1009 which had ROS 6.15 installed and I updated it from Winbox to ROS 6.17. I had this problem too when using Userman. It happen after 1 day of power on after restart I can use it for 1 more day and it happened again.
Then I decide to remove Userman and create user in Winbox instead and this problem was gone until now.
Anyone with such issue, can you check how many bad blocks you have?
That problem was solved for me after a normal upgrade (no netinstall)
0.2 % badblocks
uptime: 6d 05:19:19
The problem strike back again. 
password reseted to admin / null. Solving just if I restart.
Please make supout.rif file ans email to support
hugleo,
Do you used package Userman on your device? For me when I remove package Userman the problem on losing password was gone.
Normis,
How to check bad block on CCR1009, I go to system->Resource but it doesn’t show bad block.
no i’m not using Userman package.
any news about it?
Is not possible to do a supout.rif file because how that problem happens I got a read-only filesystem.
Watching this thread closely as I have the same issue. Holding off upgrading anything that doesn’t have the problem and don’t know what to do with affected units. Also have read-only problem, so no supout. Also concerned remote reboot will render other settings missing and have a bigger problem.
Can one of you guys enable logging of “store” in system/logging?
Every 5 Minutes, i see activation messages for web-proxy and the sd slot of my CCR1009. I already removed Usermanager because its useless on CCR, after some time, the database went from active to backup and Usermanager is no longer usable.
I’am not sure if this is an nand issue or something with the storage controller on ccr?
@Shiro I added store logging, nothing yet.
@normis I can’t make a supout, because it appears read-only. sup-output hits 100%, but doesn’t show a file created. Also, if I try to create a backup it says “Couldn’t make backup - action failed (6)”. Bad blocks information isn’t present for Cloud Cores under the resources menu (nor is other sector information like is available on other models).
Also new, this is affecting a router running 6.11 as well, not just newer versions as earlier expected.
I agree this is a huge issue.
@janisk netinstall will require changing out the unit as we don’t have that as an option at those sites. Are you sure this will fix the issue? Is this a hardware or software problem or unknown?
please send email to support@mikrotik.com with the public IP of your router and we will connect to see how to solve it
The same to me…
CCR1009-8G-1S
6.17v -3.18
I had to do a script-scheduler to make again my user accounts !!!