nanog mailing list archives

Re: Cloudflare blocking Cogent again


From: Bryton Herdes via NANOG <nanog () lists nanog org>
Date: Mon, 11 Aug 2025 13:08:25 -0500

Hey Jon -

Messaged off list looking for a little more info on what you're seeing.

On Mon, Aug 11, 2025 at 1:01 PM Miller, Jon via NANOG <nanog () lists nanog org>
wrote:

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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-- 
Bryton Herdes
Principal Network Engineer
AS13335 - Cloudflare
https://as13335.peeringdb.com
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