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OriginalAdrian's avatar
New Contributor
5 years ago

Throughput on gigabit service mysteriously slows to 7-9 Mbps every night at 8PM


First time posting and have a genuine mystery that's also incredibly frustrating.

Every night at about 8PM MST my modem slows to a crawl, ~7.5 Mbps.

This is especially frustrating as I had zero service issues until I did two things at relatively the same time.

1. Upgraded my modem from my own docsis 3.0 modem to a newer docsis 3.1 modem given to me for free by Cox.

2. Upgraded my internet from 300Mbps to Gigabit service.

Any help is greatly appreciated! 

1 Reply

  • CrystalS's avatar
    Former Moderator
    Hello Adrian.

    The purpose of the Cox Internet Forum is to allow customers to discuss technical topics related to residential Cox Cable, Telephone, and High-Speed Internet services with other customers. This appears as if you may need someone to look into your account personally. We would definitely be able to assist you with this. Please reach us on Twitter at @CoxHelp, visit us on Facebook, or email us at Provide us the name on the account with the complete service address with a link to this thread so we can get started. This way a technical support agent can investigate the signal you are receiving.

    Cox Support Forum Moderator