We just bought a DGS-1210-28P smart switch, it is my first experience with a business class switch, however I found a pretty weird behavior. The switch loses all of its configurations, even management ip address and password, when it is disconnected from power! a complete factory reset happens!

Is this normal?! Am I missing something?

Does business switches board has batteries that I should check?

  • 1
    Are you saving the configuration? If so, then you have a hardware problem.
    – Ron Trunk
    Jul 23, 2015 at 15:31
  • of course I do save them, and the switch works with the configuration applied for as long as it is connected to a power supply.
    – Sisyphus
    Jul 23, 2015 at 15:53
  • Did using the CLI work for you? I have 2 identical units for the version prior to your's (DGS-1210-24) - one works fine and one won't retain the settings.
    – topshot
    Feb 6, 2017 at 16:21
  • 1
    For me it turned that I have to go to some hidden menu item to invoke a process of saving the configurations, this is not the regular saving button available on every screen, this is a special save that used to save all of the switch settings to be reloaded back after restart.
    – Sisyphus
    Feb 7, 2017 at 14:12
  • It most likely relies on an EEPROM to save config. You’ve got a bad chip. Try newer - or current - firmware flash. If the problem persists, replace the chip or switch. These EEPROM chips are often removable, and are tagged.
    – user2497
    Oct 21, 2017 at 19:39

4 Answers 4


I have seen this behavior with D-Link's in the past, it is hit and miss with their switches. If I saved from the web GUI, it wouldn't actually save, but saving using the CLI seemed to have always worked. Try it and let us know.

  • I will try it when I get back to work. Does the switch boards has batteries that I should check?
    – Sisyphus
    Jul 24, 2015 at 8:11
  • The DGS-1210-28P does not come with a battery Oct 21, 2017 at 13:55
  • @guest_dlink_not_working But it comes with a delicious EEPROM.
    – user2497
    Oct 23, 2017 at 8:10

This has just happened to me with my Dlink DGS 3120-24SI. Apparently you need to go to the web gui then select Save ... Save Configuration / Log. Change Type to All, then Apply.

This saves everything into Non Volatile RAM to keep settings after power outs.


Previous answer given by patch67: go to web gui, Save Configuration / Log. Change Type to All, then Apply. works perfectly for my device: dgs-3120-48tc


You can use on the CLI: save all

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