5 Messages
Only getting 10 MB/s upload speed on Arris SBG8300 with the 400 MB/s download and 100 MB/s upload plan.
I am only getting 10% of the upload speed that the plan I pay for claims to provide.
I tested this while I only had one device active online so there is no way the other 90 MB/s were being taken.
Plus the Download speed shows 453.7 MB/s which is expected.
If there were any other ISP available other than Verizon or Comcast in this, I would absolutely have chosen them.
Unfortunately I am stuck with ya'll.
So please help correct this.
As the subject states, I setup a third party modem that Xfinity listed as being compatible with their service, the Arris SBG8300.
Here is what I see
Accepted Solution
BruceW
Gold Problem Solver
•
26.2K Messages
1 year ago
There are a few retail devices approved by them for higher upload speeds, but the SBG8300 is not one of them. 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/2023.11.22%20Full%20List%20of%20Compatible%20Devices.pdf).
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 higher upload speeds". For 100 Mbps upload you need one of the devices shown with an upload speed rating in the .PDF and the Reddit links, which also lists other requirements for those speeds. Comcast could make all of this much clearer, but they have chosen not to do so.
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