Poor UpStream Level

I looked at my Modem Stats this AM (Cisco DPQ3212C) and noticed that one upstream channel was giving me a reading of 0.0dBmV.

After rebooting the modem, the 0.0 moved from channel 1 the channel 3. There are no splitters to try bypassing; only one outside the house - one side goes to the TV and the other side to the modem. Is this indicative of a failing modem or is it likely a problem in the cable? If it's the modem I'll just make a quick trip to my nearest Cox store and swap the modem out rather than wait for a service call.

These are my current upstream levels:

	Power Level:
Channel 1:	29.0 dBmV
Channel 2:	26.6 dBmV
Channel 3:	0.0 dBmV
Channel 4:	29.1 dBmV

C

ChrisL

Former Moderator

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7.1K Messages

It could be either actually. Normally when an abnormally low transmit level is a signal issue it means that the signal might be a little too strong. Sometimes adding a splitter can help however this would not by any means be considered a proper fix and the open ports would be additional point for noise to get into the lines. Having a technician come out would probably be the most effective solution. Should it indeed be a situation of the signal being too strong the technician may suggest adding an attenuator to bring it down some.

L

laskie

New Contributor

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15 Messages

Thanks for the info, Chris! For now, the problem seems to have resolved itself and all four channels are once again in the 29 - 30 dBmV range. I realize that's a bit low, but that's where they've always been and performance and speed are good, so I'm not going to be too concerned.

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Poor UpStream Level

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