Yes, I checked available space on each computer.
As of this writing, I'm connected to third machine running Win10 Pro 64 that is failing to download Adobe Flash Plugin.
Earlier today on a fourth system running Win7 Pro 64, downloading of 7zip failed both times, and would not proceed further. Retried by launching PMPCU as administrator, but results were the same. Mozilla Firefox download attempt 1 failed, but did download on the 2nd attempt.
In short, this affects:
Adwcleaner
Adobe Flash Plugin
7zip
TeraCopy
Mozilla Firefox
Four different machines running Win7 or 10, on four different networks, and two different ISP's (Comcast and Frontier FIOS).
Download speeds seem affected as well. Even running over the fastest FIOS and Comcast connections available (not using wireless), a 23.92MB OneDrive update from Microsoft (who has virtually unlimited bandwidth), took something like 3-5 mins before failing attempt 1, with 2nd attempt download finishing in about 45 secs.