Have you tried incognito mode? Sometimes some Extensions will mess with the request-header and break some web sites (I'm looking at you, Cisco Licensing). FYI I'm able to access the site but don't have a login to test further. Greg Dickinson, CCNA Network Engineer -----Original Message----- From: NANOG <nanog-bounces+greg.dickinson=bryantbank.com@nanog.org> On Behalf Of Matt Hoppes Sent: Wednesday, June 14, 2023 1:21 PM To: North American Network Operators' Group <nanog@nanog.org> Subject: Comcast Business Account Website Broken This Message originates from outside Bryant Bank. Please use caution when opening this correspondence, attachments or hyperlinks (URLs). If you have questions, please contact IT Support. Thank you. For the last two weeks we have been unable to pay any bills on the business Comcast website. Clicking on any billing link results in: 400 Bad Request Request Header Or Cookie Too Large This is going to the URL of: https://secure-web.cisco.com/1OR1dkhCBJgJzALRxId_YRkGbls0qVudj2He-TbqJEuGPQC... Even trying to log out from the customer portal results in: Sorry Something went wrong. Please check back later. This is going to this URL: https://secure-web.cisco.com/1AgJ4TJJqRM8pVst8n8EDUOS8sls4KEZ5v4bwFmKGYsj2r3... Hoping someone on here can get this to the right people to fix. I'm sure Comcast would love to get payments from their commercial customer base. NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, print, save, copy, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete copies. Thank you.