On Sunday Sept 30, 2020 CenturyLink had an incident that took down Cloudflare, Reddit, Hulu, AWS, Blizzard, Steam, Xbox Live, Discord, and dozens more. We have a remote download server on a Level 3 network in St Louis than became unavailable for several hours. My little data center is on AT&T Enterprise network and we couldn’t connect and overall traffic to the sites we host was substantially lower. It was so widespread that it led to a 3.5% drop in global web traffic. Their issues started to become apparent on the previous Friday when our upload speeds to that ST Louis server dropped by half. Although CentryLink says their issue is resolved we are still seeing constant changes to our trace route to the St Louis server with different peering points showing up. We had a tick open for a different issue and the AT&T level 2 tech have told me that on the 28th NTT Global Data shifted it’s routing so that (from the AT&T trouble ticket) “MULTIPLE AT&T CUSTOMERS USING AMAZON, AKAMAI, MICROSOFT AZURE ETC.,. WEB SERVICES WHOSE TRAFFIC WAS GOING THROUGH CONGESTED NTT PEERING LINKS IN NEW YORK AND WASHINGTON, DC WERE IMPACTED”.
So what I am saying is that in the last week or so the Internet has been FUBAR and your issue could be related to any number of routing and traffic problems that have occurred.
Isn’t 2020 just wonderful so far?