Tried to understand why my Kobo doesn’t mount to the computer when connecting via cable. Best solution I’ve found is to try a different computer.

Kobo not connecting to computer…

[Use the cable that came with the Kobo.]

[Try a different cable.]

[Try a different computer.]

[USB 3 ports may cause issues. Try a cheap USB 2 hub in between.]

[Some USB cables are charge-only!]

Kobo Aura H2O keeps Connecting and Disconnecting USB issue [Solved-ish]

[Try turning off Wi-Fi.] Seems that the WiFi and the USB subsystems might be sharing a data path to the processor, so there can be conflicts between them.

Aura H2O Kobo won’t connect to a PC anymore

Kobo not recognized by computer

Transferring over wifi: Calibre has a content server (you can find it under preferences, sharing, sharing over the net), your Kobo can connect to it with its browser (under extra’s). The default port is 8080, there’s a more detailed explanation on the content server dialog.

More Wi-Fi possibilities in Add Books Over WiFi?, but the filenames tend to get mangled when importing this way, so I don’t like it.

Official documentation discusses none of these issues

Would love to recommend a ‘Canadian alternative’ to Amazon, but no longer wish anyone to experience ‘fussy’ electronics.