I run a RB3011 router router with RouterOS 6.38.
Looks to be running fine although the POE looks to be broken.
Where can I find the DHCP IP-tables where I can see which address is given to each device?
Where can I set a fixed or preferred address for some devices?

Please help, I am a bit overwhelmed with all options I see.

I know the feeling...

In Winbox

IP -> DHCP Server -> Leases

you can see all the DHCP leases, doubleclick and you can make them static and also changed the IP if you like.

//A

The Beginner Basics forum is more suitable for this question. Perhaps a mod can move it.

Looks to be running fine although the POE looks to be broken.

Sorry I'm unable to help with PoE.

Where can I find the DHCP IP-tables where I can see which address is given to each device?

You can see this in /ip dhcp-server lease

Where can I set a fixed or preferred address for some devices?

Also in /ip dhcp-server lease. Right click on a device and select "Make Static". After that you can change the IP address for that device.

I know the feeling...

In Winbox

IP -> DHCP Server -> Leases

you can see all the DHCP leases, doubleclick and you can make them static and also changed the IP if you like.

//A

Thanks for helping.
It looks like not all devices are listed though. I have a Qnap NAS and a Unraid server, which are available on the network but I don't see them in the list.
Can you tell me why?

Perhaps they have static addresses set manually and not DHCP?