Why does mikrotik reset settings?

Question

Mikrotik

Good morning!
Recently mikrotik СCR1009-7G-1С-1S+ (RouterOS 6.40.4) has started resetting settings. For example, I disable the default administrator account and create my own, but the next morning all these settings are reset to the original. The same goes for DNS settings. Dude also stopped working (Couldn't change Dude Settings - data dir dude not usable (6)). I can't update the firmware either.

Answer 1

The internal flash has died, since it cannot save any changes. Try to completely change the router through netInstall. If the problem persists, nothing can be done.