2 Messages
extremely low upload speeds
I currently have the 500Mbps download 100Mbps upload speed plan with a Netgear CM 1200 modem which is on the list of recommended modems. I currently get great download speeds but my upload speeds are at between 5-6 Mbps. I have had multiple calls with Xfinity support and no one seems to have any idea. Can anyone assist?
BruceW
Gold Problem Solver
•
26.3K Messages
1 year ago
The CM1200 is not approved for the new upload speeds. Realize that although Comcast calls some devices "Approved" and some "Recommended", for all but a few devices those designations only mean "approved/recommended for use with their Internet service", and not necessarily approved for the new upload speeds. See:
Also see the "All Compatible Devices" link near the bottom of https://www.xfinity.com/support/devices (at the moment it points to https://assets.xfinity.com/assets/dotcom/projects/cix-4997_compatible-devices/2024-02-20_Full-List-of-Compatible-Devices.pdf).
You need one of Comcast's newer rental gateways or one of the few retail devices shown with an upload speed rating in the "All Compatible Devices" PDF. Also see the Reddit link, which lists the approved retail devices as well as other requirements for faster uploads speeds. Comcast could make all of this much clearer, but they have chosen not to do so.
Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.
(edited)
1