I found the original Logo on a old harddrive. I has one of the Chinese characters wrong.

Wakan comes from the etymology of the word 'Japan' one theory is that it comes from 和寛 which in the dialect of the time/place sounded like Wakan.  

和寛 in turns comes from the ferries used to reach Japan.

I liked the imagery of your  the underlay networks being islands and the overlay network as ferries taking  the data between them.

I don't have Photoshop installed and when Krita it din't come thru as text layers.. I don't know if the text was prerendered in the PSD. so I recreated it in Krita