Visitor
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1 Message
HELP..I cannot login i get error code 400 bad request Request Header or Cookie too large
when i select login i receive error msg 400 bad request request Header or Cookie too large err msg
Visitor
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1 Message
when i select login i receive error msg 400 bad request request Header or Cookie too large err msg
BruceW
Gold Problem Solver
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27.6K Messages
2 days ago
When you get that message try logging in using a Private/InPrivate/Incognito window, or clearing the browser's cache and cookies, or another browser.
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EG
Expert
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119.8K Messages
1 day ago
The concern is not "Home Security Rules And Automations" help related........... Topic moved here to the proper help section.
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XfinityCarolyn
Official Employee
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339 Messages
2 hours ago
@sjmorrisF Hello, and thank you for reaching out. I'm sorry to hear you're having trouble signing in.
The "400 Bad Request - Request Header or Cookie Too Large" error is often caused by corrupted or oversized browser cookies stored for the website. A few troubleshooting steps that may help are:
If you've already completed these steps and continue to receive the error, please let us know.
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