NVIDIA Shield Pro rooted using wget to download Dropbox file

[HamburgJoe]

Sorry, but probabely I am blind, or lost the track. I have rooted a NVIDIA Shield Pro 2019 running now Lineage OS 17.1.

I have installed BusyBox v1.34.1-meefik. I am trying to download a file from my Dropbox account by using:

wget -O /storage/self/primary/XXX/XXX.7z "https://www.dropbox.com/s/XXXX/XXX.7z";

Yesterday this piece of code was working as expected. Today (after I have rooted the device again, because I wanted to have a clean installation after trying different tools and things) it is not working anymore.

I am getting this message:

wget: note: TLS certificate validation not implemented

All files (tried different) I am loading from Dropbox having around 800kb, even if the Original file on Dropbox is smaller, or bigger. On my Linux PC the same command is working, so the files on Dropbox are okay.

With the "?dl=1" I am getting the message

wget: note: TLS certificate validation not implemented
wget: server returned error: HTTP/1.1 400 Bad Request

Also

--no-check-cert

does not work/have a effect.

I also have tried to download with curl. Same ****, but I think the files are 1kb.

What am I doind wrong? I mean Yesterday it was working on the same device. I just rerooted it for having a clean installation. And now I am stuck. Spend several hours on google.

Don`t know and understand if it has something to do with TLS, or SSL.

Really appreciate your help.

Thanks in advance.

Stefan