nanog mailing list archives

Cloudflare blocking Cogent again


From: "Miller, Jon via NANOG" <nanog () lists nanog org>
Date: Mon, 11 Aug 2025 18:00:58 +0000

We are seeing multiple Cloudflare sites blocked on our Cogent circuits.  Three Cogent circuits from two clients in two 
states are blocked.  I opened a ticket with Cogent, but the last time this happened, they just shrugged and said "not 
our fault."  Are any other Cogent customers seeing this?  Any advice on how to resolve?  Here are the sites we see 
blocked by Cloudflare.

https://www.americanbar.org/
https://www.ballys.com/
https://investor.fanatics.com/investor-relations/default.aspx


Jon Miller
Bose McKinney & Evans LLP

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