Don't save configuration TL-WA850Re

I'm using Luci to configure mais repeater, I change de configuration, then click in Aply & Save. When I reboot de device, all my configuration gone!

How I commit the alterations?

Both hardware revisions seems to sport 4 MB flash, this suggests that there might not be enough free space left for a persistent overlay. Trimming down the firmware via imagebuilder might be an option.

Hi, have u been able to solve the problem?

didn't help for me! Report Devices Here With 18.06.0 Provided Image too big to save overlay