Which OS?
Did you try another DAW (Reaper) or an application like MusicBee which also supports ASIO?

Steinberg ASIO driver? For a RME device?
Windows Media Player? Has nothing to do with ASIO. This application doesn't support ASIO.
It would need a WDM driver.
This you can configure in the RME driver settings under WDM.
But this is from an installed RME driver, not a Steinberg driver.
Steinberg is the company who invented ASIO, but in this we should talk about the suitable RME USB driver.

Wondering why those drivers are of interest to you. You do not need them and should not use them.

You need to use the ASIO driver of your RME UC recording interface and nothing else.

What you refer to are generic ASIO drivers from Steinberg for consumer interfaces without ASIO driver of their own
to be better useable with Steinberg recording products like Cubase and Wavelab.
Again, don't use them because you have the much better RME ASIO driver for your UC, which is also required so that you can use all the functions offered by the recording interface (TotalMix FX, ...).

You should select the ASIO driver for your Fireface UC.
Did you install this driver? https://rme-audio.de/downloads/driver_usb_win_1253.zip
Then reboot your PC, so that autostart can start the driver properly; otherwise it might not be visible, useable.

In audio applications with ASIO support, you need to load this RME ASIO driver for the RME UC (and nothing else).

For all other applications without ASIO support you enable WDM driver in the RME driver settings.
By this, you create such Windows compatible drivers.

Then open Windows Sound settings.
You will see the RME WDM drivers there for every I/O port for which you enabled it in the RME driver settings.
There you have to configure the device where your active monitors are connected to as standard sound device.
By a right click of your mouse you get this selection.

Then you have sound for Windows, Firefox (all applications without ASIO support).

Hint: only create WDM devices for the ports where it is needed as those drivers are dynamically created on every startup of Windows which might take a little time for not so powerful systems.
I would choose I/O ports for monitoring, where active monitors or headphones are connected to.
Or for Mic inputs, but only if you have applications without ASIO support which need access to the microphone.

Cool dude, thanks. I'll give that a go and see what happens.