T-Mobile Caps New Rely 5G Home Internet at 354 Mbps, Raises Sticker Prices by $5

Q: As T-Mobile caps its home internet, is the 5G wireless dream finally hitting its capacity limit?

Not quite—but it is hitting a practical limit in fixed wireless home broadband. T-Mobile’s new 354 Mbps cap on its entry-level Rely plan is less a sign that 5G has failed than an admission that wireless capacity is finite when millions of households start using it like a wired connection. The company says FWA homes consume 10 to 18 times more data than mobile users, and with more than 8 million home internet customers already on the network, it now has to ration throughput more deliberately. That matters because 5G home internet shares spectrum with mobile service. Unlike fiber, capacity is not dedicated to each home; it is pooled across a cell site and affected by congestion, signal conditions, and spectrum depth. T-Mobile’s decision to enforce the cap at the network core, even when a local tower is uncongested, shows this is a structural capacity-management move, not a temporary traffic-control measure. Still, the cap does not mean the service is collapsing. A 354 Mbps connection remains well above the FCC’s broadband benchmark and is enough for most households, including multiple 4K streams, gaming, and remote work. The real impact falls on heavy users in strong-signal areas who had been getting 400 Mbps-plus and now must pay for higher tiers. The broader picture is that 5G FWA is maturing into a managed broadband product, not an unlimited-speed substitute for fiber. T-Mobile’s parallel push into fiber underscores that point: wireless can scale far, but not infinitely.

3 articles · Updated · Tech Times · Jun 8

New T-Mobile Rely subscribers now face a hard 354 Mbps download ceiling, the carrier’s first artificial speed cap in more than a decade, while existing Rely customers are grandfathered into the older uncapped version.
The cap replaces T-Mobile’s prior congestion-based deprioritization with an always-on network limit, meaning customers in strong coverage areas can no longer exceed 354 Mbps even when towers have spare capacity.
Sticker prices rose $5 across Rely, Amplified and All-In, lifting home-only rates to $50, $60 and $70 a month with autopay; customers who also have a T-Mobile voice line still pay the old effective prices of $35, $45 and $55.
Amplified and All-In are now explicitly marketed as uncapped, and customers who want speeds above 354 Mbps must move up at least $10 a month to Amplified.
The shift reflects mounting fixed-wireless strain: T-Mobile had 8.5 million FWA users at end-2025 and is targeting 15 million by 2030, making speed-based tiering a way to preserve network capacity and push bundling.