A Comcast modem/router gateway device sits on a table near a laptop.
Enlarge / Comcast's xFi Advanced Gateway with Wi-Fi 6E.

There have been some good news for customers of the cable service. Users can only get the higher upstream speeds by purchasing x Fi Complete, which adds $25 to monthly broadband costs.

Customers who subscribe to xFi Complete will have their upload speeds increased between 5 and 10 times faster. Faster upload speeds are one of the benefits of x Fi Complete.

The speed upgrade is going to be implemented in the Northeast US. Once the new tiers roll out in your region, you'll get up to 100Mbps upload speeds on 10Mbps plans. Ars was told that faster upload speeds will come to customer-owned modems later next year, but did not give a more specific time frame.

There is a cheaper way to get the same xFi Gateway with wi-fi 6E that is offered by Comcast. Those who subscribe to the xFi Complete service will only be able to get the uploading boost.

If you sign up by December 31st, you will get $20 a month for the first year of service.

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Comcast vague on timing for user-owned hardware

We asked if there was a technical reason for the slower upload speeds on customer owned equipment. The company is trying to bring faster uploads to non-Comcast modems.

"We intend to extend the experience to customer owned modems later next year and are working through the technical requirements as we learn," the company said. We started offering it with our own equipment first and are working on how to extend to customer owned equipment.

The typical validation, test, and certification process for a new network innovation precedes the uploading boost to x Fi Complete customers. It's not clear why people who pay a monthly fee for a gateway shouldn't get the same benefit as people who pay a yearly fee.

The Full Duplex upgrade is supposed to provide symmetrical download and upload speeds. Multi-gigabit download and upload speeds will be offered to some cable customers by the end of the year, according to the company. It's likely that those upgrades will require you to subscribe to x Fi Complete.