I found that if I setup a static IP from within OMV-Firstaid, the DNS value does not transfer over to the GUI setup menus.
The reason for using OMV-Firstaid is usually because I fouled something in the static network configuration and usually I am right next to a monitor so I find it handy to just correct my mess-up in OMV-Firstaid. All the settings transfer to the OMV GUI setup except for the DNS. I usually trip over the missing DNS because I can't update the plugins. While it's only an annoyance at this point, early on where the lack of the DNS led to unstable behaviors that led me astray for hours until I figured it out. I think this should be solved so others are not having to figure this out.
Edit - This is on OMV7.
