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Superuser
Superuser
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Message 11 of 12
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Re: Extreme Sudden Drop in Speed (Wired Ethernet)

The modem side of your HUB connects to and communicates with the local CMTS

Under most circumstances it works and everything is fine.

However , if things change on the local network segment, your power levels change. Mostly they stay in spec but certain events may take them out of spec.

  • Introduction of upstream noise to the local circuit- your modem needs to "SHOUT LOUDER" to connect to CMTS
  • Introduction of downstream noise- your SNR drops and your modem can no longer "hear" the CMTS or hears it badly.
  • Problem at your local cabinet- bad amp, corroded tap etc can cause SNR issues
  • Internal problem- loose coax or poorly routed coax can introduce noise to the circuit.

 


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Forum Team
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Message 12 of 12
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Re: Extreme Sudden Drop in Speed (Wired Ethernet)

Hi there JayC18, 

 

Welcome to the forums and for your first post - I was sorry to understand that you have been having some issues with your speed. 

I have located your account from your forum information and have popped you a Private Message so we can go through some checks and go through security. 

Please look out for the purple envelope Smiley Happy 
 

Hope to hear back from you soon. 

Cheers

Katie - Forum Team


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