D-Link → [Help Me] DGS-1100-16 reverts configuration

Has anyone else experienced this?

I am doing some electrical work in my house. So I keep power cycling my computer room. The devices don't all go off and on together.

What happens is sometimes the switch comes up with an old configuration. It makes absolutely no sense to me. The network is working fine. I power cycle the switch, and it comes back up with a config that does not work with my present network. How does this switch store old configurations?

I just did a restore config from the file I stored previously and now its working perfectly. How can the Dlink store the config to a file but still not commit it to ROM!?!

You might post this on DLink DGS Forum and or phone contact DLink support, level 2 or higher to be sure.