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Forum Discussion
CM1000 keeps rebooting blinking downstream light
Context: I’ve had the CM1000 for a few years at this point and today about an hour ago I noticed I was having wifi issues, I went to go check my modem and router (CM1000 and Nighthawk AC2600 respectiv...
When its blinking on upstream/downstream, its searching for a channel to lock and either not finding one or only finding one.
Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, bad/old/cheap connectors, or corroded connections. Replace them if you do.
If you can, simply connect the modem right where the coax comes into the home. This prevents wiring in the home from being the issue. And some ISP’s charge if the wiring issue is in the home. So this helps prevent this.
You can post a screen snip of the cable connections page and event logs and we can give you a rough idea of the cable connection.