Visitor

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2 Messages

Monday, May 11th, 2026 1:49 PM

Internet

Can't get into account says 400 error large headers or cookies 

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Official Employee

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910 Messages

1 day ago

Good morning @user_mnw58z, and thanks for posting your issue to the Xfinity forums, I hope this message finds you well. I am very sorry to hear about the issues you are having with accessing your account, but you have come to the right place for assistance with this issue. Are you trying to log into your account on the Xfinity website when you are getting this error?

Visitor

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2 Messages

How do we fix it ASAP 

Official Employee

 • 

910 Messages

Have you tried clearing cache and cookies @user_mnw58z, or tried using a private browser window?

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
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