Looks like Appveyor had a problem with their datacenter which they solved on Aug. 28, 2017:

https://appveyor.statuspage.io/

We'll keep an eye on things to see if this is still a problem for the Twisted Appveyor builds.
--
Craig



On Sat, Aug 19, 2017 at 7:18 AM, Craig Rodrigues <rodrigc@crodrigues.org> wrote:
Hi,

A few of the Appveyor builds have been failing
intermittently due to networking problems
at Appveyor.  This was due to Appveyor moving
to a new datacenter:

http://help.appveyor.com/discussions/problems/7409-chocolatey-timeout-when-installing-openssh

Things seem OK now, but if there are problems we
can let Appveyor know.

--
Craig