Does it still work for you?

[allan-null]

For me the 3DS screen changes for a split second as if it was sending files and then changes back to the waiting connection screen. And on my computer says "Host is down".

[slice]

Sorry for the late reply (didn't notice this).

It behaved like that on my Linux laptop before (both symptoms), it just requires a lot of trial and error, and fiddling.

If this is truly broken then I'm not sure, sorry. 😕

[allan-null]

Thanks for the answer. I tried several times, maybe I am missing some package?
Anyway, since Nintendo is abandoning the 3DS I installed a custom firmware on mine and now I just host an FTP server on it when I need to transfer files.
I am still willing to help, though, but I am kinda clueless.

[freddy2659]

See my pull request. It's possible you're having the same issue I was.