Very low Upstream signal

Several months ago my (Cox’s) modem was damaged by a power surge. It was replaced with an Arris TM3402A. Since then I’ve had no problems. Download and Upload speeds are good 180 down and 12 up and Downstream power is good. However, Upstream Power Levels ALWAYS remain between 23.50 and 26.00 dBmV. I know that this is MUCH below the desired level, but I am experiencing no problems. Should I be concerned? Should I get a tech out here to check things out?

Raskie

New Contributor III

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34 Messages

bump

Allan

Moderator

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2.4K Messages

Hello Raskie. The modem is reporting some signals that are not where we would like them to be. Are there any signal amps or splitters on the cable line going to the modem? -Allan Cox Support Forums Moderator

Raskie

New Contributor III

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34 Messages

Thanks for the reply, Allan. There is one splitter, outside, where the drop comes into the house. One side goes to my Contour box - the other side to my modem. No other splitters or amps. It seems odd that my upstream signal is SO LOW and I am experiencing no problems.

JonathanJ

Former Moderator

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1.9K Messages

@Raskie

Have you tried unplugging the power cord and unscrew both ends on the coax cable to make sure they're secure and conductors are not bent? Once that been completed we can recheck the signal levels. Replacing the splitter may also help but that may take a truck roll.

Jonathan J
Cox Moderator

Raskie

New Contributor III

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34 Messages

Ok, Jonathan, I tried what you suggested. I checked the coax for bent connectors and secure connections. All looked good. Unfortunately, there was no change in my upstream signal. I repeat, this appears to be causing me no issues whatsoever. Both download and upload speeds are what the should be. I was simply inquiring if this may cause problems sometime in the future.

JonathanJ

Former Moderator

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1.9K Messages

@Raskie

No change on our end either please keeps us updated if you notice change in your speeds.

Jonathan J
Cox moderator

Welcome to the Cox Community

Very low Upstream signal

Raskie

JonathanJ

Raskie

JonathanJ

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