unit factory resets after every power up.

I have GL-SFT1200 with up to date firmware. My unit is not able to keep new settings after power-down.
when unit is turned back on I have to setup new passwords, new WIFI credentials, and new LAN settings. System always go back to factory settings.
has anyone seen something like this and how do you fix it.

Flash it again using the uboot method .

Can you share instructions on how to do it?

Did you install anything that filled up the storage?

In such case, just do a firmware reset and start over should be OK. Not necessary uboot.

If a reset does not work need to do uboot.