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Forum Discussion
Sallygood25
Sep 10, 2025Follower
CM2050V-speed capped at 50Mb download in a 500Mb plan
I installed this device in my house, put fiber directly on it, it registered without issues. But I noticed a odd issue: Any download is always capped at 50Mb/s (my plan is 500Mb/s for both do...
plemans
Sep 10, 2025Guru - Experienced User
Who's your ISP? I'm wondering if you have it backwards as xfinity's upload max for their next gen devices (which the cm2050v isn't sadly) is 300mbps (usually hits 350mbps). The max upload for the CM2050v is 40mbps. see here: https://assets.xfinity.com/assets/dotcom/projects/cix-4997_compatible-devices/2024.09.18%20Full%20List%20of%20Compatible%20Devices.pdf
So I'm wondering if you have it backwards.
- KitsapSep 10, 2025Master
Who's your ISP? I'm wondering if you have it backwards as xfinity's upload max for their next gen devices (which the cm2050v isn't sadly) is 300mbps (usually hits 350mbps). The max upload for the CM2050v is 40mbps. see here: https://assets.xfinity.com/assets/dotcom/projects/cix-4997_compatible-devices/2024.09.18%20Full%20List%20of%20Compatible%20Devices.pdf
So I'm wondering if you have it backwards.
plemans, your list is out of date. Below is a screen snip from the Xfinity sub-forum over on Reddit.