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Nighthawk AC1900 C7000v2 Downstream Channel Indicator Light Blinking with slow speeds
I am having issues with my Netgear Nighthawk AC1900 WIFI Cable Modem Router, Model C7000V2. It is about 5 months old. It was working fine for the last four months. Over a month ago, the indicator lig...
If you've checked all the cables/connectors to ensure you're good, then the ISP needs to check the line as you have power issues (out of spec) and a bunch of errors
I don't have any amplifiers, signal attenuators, or splitters. No kinks, damage, or moisture in line. No improperly made ends, foil touching the copper coax line, or bad/old/cheap connectors or corroded connections.
I connected modem where coax comes into home. When I plugged into coax cable that connects to outside of house, the download speed went up to 75 Mbps, but the indicator light flashed showing no downstream channel connection. Please see cable connection results below when modem is connected directly to coax cable coming into home from outside.
When I hooked it up back inside house, I got slower speeds, but the downstream channel locked. See screenshot below.
Now after the modem being back online for about three hours, the downstream channel light is blinking again and my download speed went from 35 to 13 Mbps. See screenshot below for cable connection values. Looks like more errors and downstream channels not being locked again.
If you've checked all the cables/connectors to ensure you're good, then the ISP needs to check the line as you have power issues (out of spec) and a bunch of errors
It was a lot of work to get Xfinity to come out and check the line, but they finally agreed with the agreement that I would pay $100 if the issue was with my line or modem. The Xfinity technician who came out determined the issue was with their line. Their connection at the top of the pole had let water in causing the issue. Now that it is fixed, all downstream channels are locked, with power in spec, and with no errors, and my download speed is back up at 85 Mbps. Thank you so much for helping me trouble shoot this. I had no idea what to do, and now I am back up and running without any additional cost on my end. When I called Xfinity, they tried to tell me the issue was with my modem and that I needed to call the modem manufacturer or that I needed to rent a modem from them. Based on your help, I was confident on what the issue was, and I actually got it resolved.
Glad that fixed it!
It is a pain with xfinity as I've had to go through the "we'll charge you if its on your end" battle with them before.
I've actually had to rent a modem from them before because they still claimed it was on my end until I could prove it wasn't the netgear modem and then their modem.
Stinks when you have to fight just to get them to ensure a good signal.
But either way, its working again!
Happy to hear it.