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NetFixer
From my cold dead hands
Premium
join:2004-06-24
The Boro
Reviews:
·Cingular Wireless
·Comcast Business..
·Vonage
·Comcast
reply to wah001

Re: [Connectivity] Upstream bonding drops and high power level

said by wah001:

I have been having problem with my upstream for a couple of weeks. I even went as far as purchasing a new SB6141 modem which appeared to have corrected the issue for a while.

My upstream bonding drops from 3 channels to just one and the power level goes through the roof. (From 51dBmV to 57dBmV)

This is usually accompanied by T4 timeouts and a modem reboot
(Screen shots attached)

Any suggestions?

Check all of the coax connections for tightness and corrosion, and replace any older crimp style connectors with compression connectors. Also connect your modem directly to your demarc (the first connection in your home before any splitters); that will eliminate inside wiring and splitters as the source of the problem. If that doesn't help, then you will need to ask Comcast support for help.
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wah001

join:2009-01-02
united state

The modem is on a dedicated RG6U Quad line.
Im on with support and she is grasping at straws now

Apparently "that the signal shows red and yellow still." according to their end


ExoticFish

join:2008-08-31
Stuarts Draft, VA

Your upstream is way too high. You need a tech visit.
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