We've received word from our data centre hosts that they will have a network infrastructure outage 2023-01-31 (this coming Tuesday), 8am-12am-ish EST (UTC-5).
cygwin.com web and git will be unavailable during this outage.The Cygwin setup program should continue to function (as if it can't contact cygwin.com, it should use a cached mirror list, and all package downloads are from a mirror).
