Modem upstream blinking

There are modem upstream blinking causes of this including an internet outage, cable fault, or a device fault. Some of these issues are within your control and some unfortunately are not.

Trouble shooting for Cable Internet Before contacting technical support please check the following: Check Connection Have your changed your modem? Is your modem connected as per the Modem Connection Guides? Is the coaxial cable connecting your modem to the cable jack secure at both ends? Is the cable connecting your modem to your computer secure at both ends? Is the power adapter connected securely to the modem and other end to the power outlet?

Modem upstream blinking

Wednesday, April 12th, PM. However i notice that the upstream light is constantly blinking. Your service provider might be under maintenance. Most of the time it won't affect your traffic and will automatically clear when work is complete. On the CM upstream light was solid. Accepted Solution. You can mark this issue as resolved. I had tech Come to our property. The issue was on the street pol having a bad adapter and sending no signal. They replaced that and the cable from the pol to our home and resolved the issues. Hi there, nermin , thank you for taking the time to reach back out and updating on our community on the resolution. I am happy to hear a technician was able to get the issue resolved for you! If you have any additional questions or need additional support please feel free to reach back out at anytime. Hello and welcome to Comcast. Thank you so much for reaching out to us about your new modem issues with the upstream.

Power Cycle Unplug your modem from power for 1 minute and then plug it back in. Restarting your equipment is always the first step to solving internet problems.

This topic has been marked solved and closed to new posts due to inactivity. We hope you'll join the conversation by posting to an open topic or starting a new one. Start a New Discussion. If not, how to fix it. Go to Solution. Check your cable and make sure there isn't any splitters.

This topic has been closed to new posts due to inactivity. We hope you'll join the conversation by posting to an open topic or starting a new one. Start a New Discussion. You can always try a different modem and see if it works. If it has the same issues, then its the cable running to the modem or the isp's lines. If two different units have failed, then either this is a ISP line problem and the ISP needs to send someone out to check the signal at your place, or you have two faulty units. 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.

Modem upstream blinking

This topic has been marked solved and closed to new posts due to inactivity. We hope you'll join the conversation by posting to an open topic or starting a new one. Start a New Discussion. I've had the Netgear CM for about a year now and all of a sudden within the last 2 days the upstream light has been blinking green nonstop. My internet connection seems fine and as far as I can tell the connection doesn't seem to drop. I tried troubleshooting the device by doing a reset, factory reset, and then finally contacting Xfinity.

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RouterFreak is a blog dedicated to professional network engineers. Please note that if the "Online" light is on, the modem is updating its system software and service should be automatically restored after a few minutes. You can turn the device off at the mains by unplugging it and allowing it to rest for a few minutes. See All. Your modem might not be the problem. Message 8 of 9. WPS light. Power Cycle Unplug your modem from power for 1 minute and then plug it back in. Also, your password might be compromised, resulting in many unknown devices accessing the device. Rapid blinking Sporadic, rapid blinking is usually nothing to worry about. Me too. C upstream light blinking. Thank you for helping me!

Share Dec 6, We listed the lights in the general order that you might find them arranged on your device.

Is the power adapter connected securely to the modem and other end to the power outlet? What do you think about this article? If you suspect the cause may be a cable issue, first check to see if all cables are securely fitted to the router. For some lights—like upstream, downstream, and Ethernet lights—blinking means the equipment is functioning properly. For instructions to restore Internet connectivity click here. If they are secure, check for any visible damage on the cables. Should my link light be flashing? Or the server is experiencing problems of overloading as too many people are trying to access the same server at the same time. Start with removing any amplifiers, signal attenuators, or splitters from the coax. Xfinity Community Forum.