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Forum Discussion
CM1200 Modem Upstream Light Flashing
The upstream light on my CM1200 is continously blinkinking. I do have internet service, but the modem admin console says that the upstream bonded channels only have partial service and show only 1 c...
do you have a screen snip of the cable connections page? (all of it)
Also, if you have any splitters, amplifiers, or signal attenuators in the coax line, remove them.
check the line for kinks, damage, old/bad/corroded/cheap cables and connectors. replace them if you do.
preferably, move the modem to right where the coax enters the home.