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Forum Discussion
CM1100 dropping connections
Comcast technician says their diagnostics is fine from their end, but my connection drops several times in a day. 1. Trying to understand these errors so that I can have better coversation with C...
i bought my unit from costco about 2 months ago and i have this issue where after about 2 weeks my cox internet goes down. when it first started happening it would come back in 15 minutes then it would go down a couple days later but then come back up in 30 minutes. i just assumed it was Cox. after a few times this happened and after somteims wairing 1-2 hours for it to come back online, i finally called Cox and they said that the cable modem was offline and to reboot it.
so i powercycled it, voila it started working a couple weeks ago. now it happened again yesterday and i powercycle it, and then it starts to work again.
seems like something is off with the modem. i logged into it yesterday to check the logs and it had some entries about DHCP error like it couldnt grab DHCP for some reason.
Have the ISP check the signal and line quality UP to the modem.
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.
itsjohnchow wrote:i bought my unit from costco about 2 months ago and i have this issue where after about 2 weeks my cox internet goes down. when it first started happening it would come back in 15 minutes then it would go down a couple days later but then come back up in 30 minutes. i just assumed it was Cox. after a few times this happened and after somteims wairing 1-2 hours for it to come back online, i finally called Cox and they said that the cable modem was offline and to reboot it.
so i powercycled it, voila it started working a couple weeks ago. now it happened again yesterday and i powercycle it, and then it starts to work again.
seems like something is off with the modem. i logged into it yesterday to check the logs and it had some entries about DHCP error like it couldnt grab DHCP for some reason.
My issue was intermittent signal problems from the ISP. They had to come out to diagnose the problem. From their internal technicians side it just looked like the modem was periodically rebooting. After a lot of troubleshooting... new modems... and other things... finally got back to the original configuration and they agreed to come out - solving it roughly a day later after they replaced some hardware in a box on the street.
So the CM1100 seems to be working now?
No. Still seeing dropped connections.
1. Need to find a way to update the firmware. Not sure how as neither the Netger or Comcast wants to do it.
2. Trying to understnad the error codes in logs to have conversation with Comcast technical support folks to check it out further.
-Thanks.