 gar187erI do this for a living
join:2006-06-24
Dover, DE
kudos:4 | reply to pclover
Re: [Connectivity] Lost downstream and upstream bonding said by pclover:51 Dbmv is high for the upstream. That is the highst you want to go within the spec. 52 dBmV is the max I think for QAM64. I would get a tech.
54 is the max...51 is well within reason....
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I'm better than you! |
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 EGThe wings of lovePremium
join:2006-11-18
Union, NJ
kudos:9 | Variables variables.. |
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 graysonfPremium,MVM
join:1999-07-16
Fort Lauderdale, FL | reply to gar187er
I'm currently at 51dBmv upstream, I have 3 upstream channels bonded, and the connection is solid. But this is not typical.
More usual is 55dBmv, at that point there are no more bonded upstream channels and the connection becomes a bit unstable. When it gets to 57dBvm, it's like a yo-yo, up and down.
On the other, shorter coax coming into the back of the house, I see 45dBmv upstream, but that's not where I need the modem.
Comcast did a line test on the flaky line, which is nearing 20 years old, and said it was "horrible" and a tech is coming out on Tuesday.
The only issue is will he run new coax free of charge, and if not how much will it cost.
I could plug the modem in on the shorter 45dBmv line and get a pair of power line ethernet adapters to get it over to the room where the bad line comes in but that's such a huge kludge.
We'll see. |
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 IowaCowboyWant to go back to IowaPremium
join:2010-10-16
Springfield, MA
 ·Comcast
 ·Verizon Broadban..
| said by graysonf:Comcast did a line test on the flaky line, which is nearing 20 years old, and said it was "horrible" and a tech is coming out on Tuesday.
The only issue is will he run new coax free of charge, and if not how much will it cost.
Depends if it's a drop or inside wiring. In my area it's about $25 to install a cable outlet if the problem is inside wiring plus a trip charge for a customer side problem. If its a drop line (from the pole/pedestal to the ground block) they'll replace it free of charge. I live in a duplex and my underground drop line went bad and they replaced it free of charge although they did a poor job and they cut corners. |
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graysonfPremium,MVM
join:1999-07-16
Fort Lauderdale, FL | Well, the tech said it will be no charge, but I'll believe that when the next bill gets here.
He explained it much as you did, but I don't know what a ground block is.
The cables here run from the pedestal along the outside of the foundation and penetrate the walls where needed. There are no jacks, the cable comes in and goes where needed in the room. There are plastic grommets placed on the cable on both sides of the wall.
It needed to run under a walkway made of pavers. He said he couldn't rip them up, so I did that for him and replaced them when he got past that point. Did a great job, no corners cut at all.
Signal now is great, not a single drop, not even a single correctable or uncorrectable since Tuesday. |
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