We still think the understanding of multi-AP WiFi is in the dark ages, so we are going to try to sum up the articles we have written in the past few months, and then we promise to leave the subject alone for a while. The only reason that we spend so much time on it is because it will eventually be the main weak point in the delivery of the entire visual entertainment industry. Ask an ISP what keeps it awake at night and it is likely you will get two separate answers – low Net Promoter Scores and WiFi – and these can often be part and parcel of the same problem. If all video is to go over…