Just created this post for other anxious dummies lost in r/japanlife posts and「Wi-Fiルーター5選!後悔しない選び方」sort of videos. It's gonna work, the speed will be mediocre, but it's OK..
Long time no post! I have moved recently, this also means that I have another ISP now. I am using Softbank (it was offered to me by my 管理会社) and, long story short, if you don’t renting their BB-unit for ~700 yen per month, you won’t be able to use anything other than PPPoE, no IPv6 use at all. I bought an Aterm NEC router, so I am in that boat too.
This means that you WILL STUCK at speeds like 100 Mbps, especially if you are on 1 Gig plan (it seems that to to get speeds faster than 1 Gbps, you need to be on 10 Gbps plan).
If you are okay with this, then the process of setting up the home network is going to be like this:
That’s it. I think I am going to update this blog more often now.