Copying also seems to be taking longer but even for (<20Mb) small files, it takes forever on the “Preparing to copy.” At least with copying, I can see progress. Additionally, with copying, as I see progress, it seems to get stuck on the last “5 seconds remaining …” for 10 or more minutes. I am running latest El Capitan and the latest firmware for my WD device. On a pretty solid home WiFi network that I recently upgraded via an Archer C7 router. I’ve reached out and spoke to a tier 1 support person and they’ve escalated to tier 2, but I wanted to see if the community has any insight before I get on the phone to occupy the rep’s time. 
Thanks in advance,
CP
) When I get a chance, maybe I’ll try looking into that. For the longer post about copying speeds and so on, that’s another thing altogether. Yes I am sending the files via home WiFi, not LAN cable, but other services work fine on the network. To be continued…but thanks.