Help!!!!! Gateway gone!!!

Randomly today all computers dropped the network. Non of them can ping the gateway. I can’t see the ip on winbox to access the router.

I’ve plugged direct into the router and the ip for the gateway still doesn’t appear. I don’t know what to do!

However, there is a 0.0.0.0 ip on there that I can log into via winbox as this was an old network that is still on there that all the config was deleted for.

I’ve logged into that and can see everything still setup as it is for the gateway and network that no one can connect to. The dhcp is up and running. Everything seems fine. Even the gateway ip is listed in the addresses.
So why isn’t it displaying in winbox to be able to connect to and why can non of the computers or servers ping it so they can connect to it???

The network still shows up under networks under the dhcp server part.

It can be anything…
What is the device model ? What ROS version it has ?
You could also provide your config with hide-sensitive…