Forum Discussion

Aspirant

Oct 08, 2020

CM500 - 0MBPS Upload with full Upstream lock??

My internet connection has been bad the past few days (upload speeds of 0-0.05 mbps), and working remote has been impossible (I am on my own hotspot). Xfinity sent a tech who told me it was my modem,...

FURRYe38

Guru - Experienced User

Oct 08, 2020

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

If nothing seems to correct the problem, then modem may need to be replaced.

jadavenp
Aspirant
Oct 08, 2020
I replaced the modem with a C1000V2 and am still having issues. I do not think it was my CM500, but thank you for your advice.
- FURRYe38
  Guru - Experienced User
  Oct 08, 2020
  Have the ISP come out and have a look if your seeing same problems with a different modem.