@Veti
Yes, I have learned that. I am not comfortable doing it myself at this stage. Will do it later some time.

Thanks again. You have been a great help. The think I like for now the most is that I can change the baby-steps' increments.

It says:
Duet Web Control 2.0.7

I'm so happy.

@Veti
Ok, thanks. I have just loaded the file again under ip/reprap.htm

Nothing seemed different. I tried again to load the page but only with IP. And it refreshed to what seems to be the updated DWC.
It looks a whole lot different and will have to learn the new layout ... but I like it.

Thank you so much again for your help. Much appreciated.

@Veti How did you know that? You're a genius. Thanks for sticking with me. I don't mind having it like this, but what did not happen or happen? I want to learn.

It doesn't look like it installed the file:
Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
Firmware Electronics: Duet WiFi 1.02 or later
Firmware Version: 2.05.1 (2020-02-09b1)
WiFi Server Version: 1.23
Web Interface Version: 1.22.6

@Veti I'm using the printer's IP address. I can successfully ping it and it is also listed as a connected device on router UI.

I tried with Edge, Firefox & Chrome, normal and private/incognito mode and in all instances just a blank page.

I have also switch off and back on the printer a couple of times.

@Veti I unfortunately need to change my reply to: "It worked once but not again". Anything I can try. I cannot even access it from my phone or tablet. Page remains empty. I don't get an error message ... only empty page.

The wifi seems ok. I could start a single layer square which is printing now. Page remains empty.

Any other advice will be most welcome. At the moment I am stuck with an empty page.
If needed, I can access the printer through a USB cable with my Laptop.

@Veti great. Worked first shot. Thanks again.

@Veti do I need to switch off and back on after uploading the file? I just uploaded the file and all were extracted 100%. The page then went completely empty ... I even refreshed the page ... no difference. I don't want to switch off and back on before you giving me the green light.
Thanks.

@Veti great thanks. Just waiting for a print to finish and will then run the file.

@Veti thanks again. Do I need to make a backup first? If so, how do I do it? I appreciate your help.