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Forum Discussion
CM2000 keeps losing downstream connection.
Hi all,
Having a sporadic issue with my new Netgear CM2000 modem. I keep losing the downstream connection, or so it seems, the LED blinks and I have no connectivity. Rebooting the modem fixes the issue. I have a Orbi RBR850 for the router with one satellite. I have attached a picture of the logs for today when it happened and downstream and upstream. I have RCN for internet ~200Mb down 20 up. Any help is appreciated thanks!
17 Replies
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
Be sure to power OFF the modem for 1 minute them back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
FURRYe38 wrote:Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
Be sure to power OFF the modem for 1 minute them back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
Was trying to avoid a call to RCN, I'm not the primary account holder but will do I first suspected that it was a provisioning issue. I repurposed a RG6 run to be the modem. Will check the splitter locations. Will also try the power down for a minute.Thanks for the responses!
Photos can take a while because a moderator has to approve them. And unless there's a new reply, its rare for us to re-check posts.
So you can click on "choose file" and attach the photos (each one an individual post) and we can view them. Otherwise it could be a while.But FURRYe38 advice is sound as well
plemans wrote:Photos can take a while because a moderator has to approve them. And unless there's a new reply, its rare for us to re-check posts.
So you can click on "choose file" and attach the photos (each one an individual post) and we can view them. Otherwise it could be a while.But FURRYe38 advice is sound as well
Thanks! Will attach as separate posts.
Doesn't look like you have any channels locked after channel 16 on the downstream?
I'd have your isp check the line. Like FURRYe38 says, check the line for kinks, damage, poor/cheap connectors, loose connectors, extended runs. Preferably, directly connect the coax from where it enters the home to the modem. if there's a splitter, remove it and check the connections.
plemans wrote:Doesn't look like you have any channels locked after channel 16 on the downstream?
I'd have your isp check the line. Like FURRYe38 says, check the line for kinks, damage, poor/cheap connectors, loose connectors, extended runs. Preferably, directly connect the coax from where it enters the home to the modem. if there's a splitter, remove it and check the connections.
Yes. No channels locked after 16 down. I don't have gig service, so I don't think I need them? Current service level is 155 down but I get 200 accross speedtest sites. Will check the splitter locations and for damage thanks.
