NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
CM1150V Downlink Light Flashing
My CM-1150V Cable Modem has in issue where the downlink light starts flashing, but everything is working correctly. The modem status shows no issues. When this happens, I've received two CM-STAT...
Here's a screenshot of the error log. The CM-STATUS 16 and 24 messages don't start the downlink light flashing.
One other data point: The downlink light *stops* flashing when I receive CM-STATUS 23 and 22 messages.
I do have a splitter in the line, but cannot remove it.
MadDog97 wrote:Here's a screenshot of the error log. The CM-STATUS 16 and 24 messages don't start the downlink light flashing.
One other data point: The downlink light *stops* flashing when I receive CM-STATUS 23 and 22 messages.
I do have a splitter in the line, but cannot remove it. ---Sure you can. Its for testing. If you remove it and the issue goes away, the splitter was the problem. I'd recommend moving the modem to where the coax enters the home anyway.
And did you have the cable connections page? that helps to compare to the logs.
but as FURRYe38 said, you'd probably need to have the ISP check the line. It just helps to know why you're having them check the lines when you call.
Here's the cable status.
Cable splitter is on the outside of the house, before it goes into TV room and under house towards the bedrooms. Therefore, cable modem cannot be placed before the splitter.
MadDog97 wrote:Here's the cable status.
Cable splitter is on the outside of the house, before it goes into TV room and under house towards the bedrooms. Therefore, cable modem cannot be placed before the splitter.-----Sure it can. get a direct connection adapter and just direct connect it through and send that leg to the modem. If the problem resolves, its a signal issue or the splitter issue. Your not doing this permanantly. You're doing it for testing/troubleshooting.
When the light goes blinking, it means its searching for downstream channels or attempting to lock them. If its solid, their locked. If the screen snip is taken when they're not blinking it just shows the connection at that time. Maybe there's a loose connection, bad cable, or even the wind thats effecting a line. (or something similar) I've had moisture in a coax cable that caused many a headache for troubleshooting. I finally moved the modem to a different line and it worked fine. moved it back, issues. So I replaced it and was checking the line and found a crack/moisture in it.
How often do you run into the issue? If its daily, use the direct connection without the splitter for that time period. yes you might not have tv for 24-48 hours but its part of testing/troubleshooting.
Also, what sized splitter is it?
Usually the recommend route is to split the incoming signal with a dual splitter. You send 1 leg to the modem and use the rest to feed the house. On the house line you can add more/larger splitters but it ensures the best signal sent to the modem.
The cable connection page shows the same results, whether the light is blinking or not, and the modem is working fine.
My original question was that I believe the flashing downlink light, caused by a CM-STATUS message Event type code 20, isn't turned back to a solid light when a CM-STATUS message Event type 22 is posted.
Now, why I get these errors, I have no idea. The time between the messages is usually around 30 seconds or so.
