Lantiq XRX200 Easybox 904xDSL and Speedport W 921v build

@Plonk34 Thank you so much for helping me in the 904xdsl main thread!
(Support for Easybox 904 LTE)

I did not even think it could be possible to use the dsl as ethernet wan port and it works perfectly! Did I miss a documentation about this or is the 904xdsl a rare exception (recent Avm devices got dsl and wan as separate ports)?

After i did the config as you wrote, everything was shown in the webinterface, but i guess it would not have worked via the webinterface alone (similar to the wifi)?

Now I got two more questions that are probably more specific to your build:

After rebooting, the lan port my PC was plugged in becomes disabled.
If I unplug it after issuing the reboot and replug it after it has finished booting, everything is fine.
Does this happen intentionally for some reason?

Is there a way to get a printserver working via Usb?

root@OpenWrt:~# opkg install kmod-usb-printer p910nd luci-app-p910nd
Installing kmod-usb-printer (5.4.72-1) to root...
Downloading https://downloads.openwrt.org/snapshots/targets/lantiq/xrx200/packages/kmod-usb-printer_5.4.72-1_mips_24kc.ipk
Unknown package 'p910nd'.
Unknown package 'luci-app-p910nd'.
Collected errors:
 * satisfy_dependencies_for: Cannot satisfy the following dependencies for kmod-usb-printer:
 *      kernel (= 5.4.72-1-9e5db683a6c79158a9465aec1807cb9b)
 * opkg_install_cmd: Cannot install package kmod-usb-printer.
 * opkg_install_cmd: Cannot install package p910nd.
 * opkg_install_cmd: Cannot install package luci-app-p910nd.