Linksys EA6100 AC1200 Router Review: Competent but Dated

That "AC1200" badge on the front of the box? It's a maths problem, not a promise. You take the 300Mbps theoretical ceiling on the 2.4GHz band, add the 867Mbps theoretical ceiling on the 5GHz band, and you get 1,167Mbps, which someone's rounded up and slapped on the packaging. Neither number is what your laptop will see at the far end of the landing, through a plasterboard wall and a loft hatch. What actually matters is how much usable throughput survives that journey, and whether the router holds it together when the whole house is online at once.

So: the Linksys EA6100. It's an older AC (Wi-Fi 5) dual-band router, sitting at the budget-to-mid end of the market, and it's aimed squarely at people who've had enough of their ISP-supplied box and want something they can actually configure. The Smart Wi-Fi app angle is the main pitch here, letting you manage the network remotely. That sounds good. The question is whether the underlying hardware and software can back it up, or whether this is just a slightly nicer version of the plastic box your broadband provider already gave you for free. With 749 owner reviews averaging 4.1 stars, there's real-world signal here to work with. Let's see what it actually tells us.

The honest verdict, before anything else: the EA6100 is a decent, no-drama router for small homes and light users, but it's showing its age in ways that matter. If your household has more than a dozen connected devices, or you're regularly pushing 4K streams and large downloads simultaneously, you'll feel the ceiling. For a first-step upgrade from an ISP router in a flat or a small two-bed, though, it does the job without making you read a manual the size of a paperback.

The physical design is fairly standard for the era: a compact rectangular unit with two external antennas. Linksys rates it for coverage up to around 1,000 square feet (roughly 93 square metres), which puts it in small-flat or small-house territory. The port layout is functional rather than generous: four 10/100/1000 Mbps LAN ports and one 10/100 Mbps WAN port. Note that WAN port speed. It's 10/100 Fast Ethernet, not Gigabit. If your broadband connection delivers more than 100Mbps, that WAN port becomes the bottleneck before your Wi-Fi even gets involved. That's a meaningful limitation worth understanding before you buy.

There's no USB port on the EA6100, so no NAS functionality, no USB printer sharing, nothing like that. It connects to Linksys's Smart Wi-Fi cloud platform, which is what enables the remote management app. Setup is handled through either the app or a browser-based interface. MU-MIMO (Multi-User, Multiple Input Multiple Output, which allows the router to talk to several devices simultaneously rather than queuing them) is not present on this model. That's relevant when you're looking at device capacity, which we'll get to shortly.

Owners in flats and small two-bed houses consistently report solid coverage throughout the space, with the 5GHz band working well in the same room or adjacent rooms and the 2.4GHz band reaching further but at reduced speeds. The picture gets murkier in larger properties. Three-bed semis with thick partition walls, or any home where the router can't be centrally placed, generate more complaints about dead zones upstairs or at the back of the house. That's not unique to this router, it's physics, but the EA6100's two-antenna configuration and Wi-Fi 5 radio set means it has less headroom to fight back against a difficult layout than a modern Wi-Fi 6 router with beamforming would.

A meaningful subset of owners specifically mention that range on the 5GHz band is noticeably shorter than they expected, which is accurate to the spec. 5GHz is always the shorter-range band; the trade-off for speed is penetration. If your main use case is getting a fast connection in the room where the router lives, or the room next door, 5GHz will serve you well. If you need coverage across two floors or at the end of a long house, you're going to lean on 2.4GHz more heavily, and that band's 300Mbps ceiling will show itself. For most small-home scenarios, owners report it's fine. For anything bigger, it's not the tool for the job.

The more pressing bottleneck, though, is that 100Mbps WAN port. If your broadband package delivers 200Mbps, 300Mbps, or more (which is increasingly common with FTTP connections across the UK), the EA6100 physically cannot pass more than 100Mbps to your devices. The WAN port is the pipe through which all your internet traffic flows, and it maxes out at 100Mbps. Your internal network speeds between wired devices are fine (those LAN ports are Gigabit), but your internet speeds are capped. This is a genuine, hardware-level limitation that no firmware update will fix, and it's the single biggest reason to think carefully before buying this router if your broadband is fast.

Owner reviews reflect this. People on ADSL or older VDSL connections (where the broadband speed is under 100Mbps anyway) report perfectly happy experiences. People who've upgraded to faster fibre and then noticed their speeds haven't improved are less thrilled, and some have worked out why, others haven't. The router itself isn't slow in any pathological sense. It handles streaming, browsing, and light gaming without drama for small households. But it has a hard ceiling, and if your broadband already exceeds it, you're paying for hardware that's holding you back.

What the EA6100 does offer is the ability to place it as the central router in a network, and it can technically work alongside a range extender if you add one separately. But that's not mesh. A Wi-Fi extender creates a separate network or repeats the signal with an associated throughput penalty (typically halving the available bandwidth on the band it's extending on). It's a different, less elegant solution than a proper mesh system with a dedicated backhaul band keeping the nodes talking to each other without eating into your usable client bandwidth.

The distinction matters because "mesh" has become a marketing term that gets applied loosely, and some buyers come to a router like this expecting whole-home coverage from a single box. The EA6100 is a capable single-point router for the space it can cover. Beyond that space, you need more hardware. If you're already looking at adding an extender to make it reach the whole house, it's worth doing the maths on whether a two-node mesh system from the start would be a cleaner, more reliable solution. For a small flat where one router is genuinely enough, the mesh question is irrelevant and the EA6100 is fine.

For a household with under a dozen active devices, the EA6100 handles the load without obvious drama. Owner reviews from smaller households are mostly positive about stability and day-to-day performance. But the pattern shifts when you look at reviews from people with busier networks. More simultaneous streams, more IoT devices, teenagers with consoles and phones all active at once, and the cracks start to show. Throughput per device drops, latency creeps up, and the occasional drop or slowdown appears. That's not a bug, it's the architecture. A single-radio-chain, non-MU-MIMO router from the Wi-Fi 5 era has a finite capacity, and modern homes push against it.

There's also no OFDMA here, which is a Wi-Fi 6 feature that lets the router divide each channel into smaller resource units and serve multiple devices more efficiently. The EA6100 predates this entirely. For a light user with a small device count, none of this matters. For anyone building out a smart home, or anyone with a family of four all doing different things online simultaneously, the lack of MU-MIMO and OFDMA is a real constraint. The router will cope, but it won't cope gracefully under that kind of pressure the way a more modern chipset would.

Does that matter for you specifically? Probably less than the marketing would suggest. Most devices in most homes are not the bottleneck; the broadband connection is. If your internet connection is 50 to 80Mbps, a Wi-Fi 5 router can deliver that to your devices without breaking a sweat. The EA6100's Wi-Fi 5 radio is not going to be the limiting factor in that scenario. Where Wi-Fi 5's age starts to bite is in the device-capacity and congestion scenarios described above, and in the WAN port limitation already covered. If you're on a fast FTTP connection and you have a busy household, the standard matters. If you're on a slower connection and your household is small, it genuinely doesn't.

Future-proofing is where the age really shows, though. Wi-Fi 5 hardware is not getting better. The EA6100 won't receive new features, its chipset won't be updated to support newer standards, and as devices increasingly expect Wi-Fi 6 capabilities (particularly around power management for battery-powered IoT devices), an older router becomes less optimal over time. It's not broken, it still works, but buying it new in the current market means you're starting from a position that's already behind. For a short-term fix or a secondary router, that's acceptable. As a long-term investment, it's harder to justify when Wi-Fi 6 routers are now available at comparable price points.

QoS (Quality of Service, the feature that lets you prioritise certain types of traffic, so your video call doesn't get murdered by someone downloading a game update) is present in the Linksys Smart Wi-Fi interface, though it's fairly basic by current standards. You can prioritise by device or by application type, which is enough for most households. It's not the granular, per-application control you'd get on a higher-end router, but it covers the common scenarios: gaming, video streaming, video calls. Buffer bloat (the latency spike that happens when the router's queue fills up under heavy load) is a known issue on older consumer routers, and the EA6100 isn't immune to it. Owners on faster connections with heavy simultaneous use do report some latency variability.

Guest network support is present, which is good practice for security. You can run a separate SSID for guests that keeps them off your main network and away from your devices. There's no VPN server built in, so if you want to tunnel into your home network remotely, you're out of luck at the router level. Parental controls through the Smart Wi-Fi platform allow you to set access schedules and filter content by device, which is a useful starting point for families, though it's not as sophisticated as the dedicated parental control suites you'd find on higher-end routers from ASUS or Netgear. For basic use, it works. For anyone wanting detailed content filtering or per-user profiles, it'll feel limited.

The Linksys Smart Wi-Fi app itself has had a mixed history in owner reviews. The majority of users find it functional for basic tasks: checking connected devices, running a speed test, adjusting settings remotely. But a meaningful number of reviews mention the app being slow to connect, occasionally losing sync with the router, or requiring the router to be rebooted to restore remote access. The reboot question is relevant here: a subset of owners report needing to reboot the EA6100 periodically (weekly to monthly) to clear what seems to be a memory leak or connection-table overflow. It's not universal, but it's frequent enough to be a pattern rather than an outlier.

Linksys as a brand has gone through ownership changes (from Cisco to Belkin, and Belkin was subsequently acquired by Foxconn's Foxconn Interconnect Technology), and long-term firmware support for older models has not always been a priority through those transitions. If you're buying this router and expecting active security maintenance for the next three to five years, that expectation is not well-founded. For a short-term fix or a secondary router on a segregated IoT network, the security posture is less critical. As your primary home router, especially if you're handling sensitive data or have smart home devices on the same network, the firmware situation is worth taking seriously.

The web interface (accessible at 192.168.1.1 by default) is more detailed than the app and gives you access to the full feature set, including the more granular QoS settings, DHCP configuration, port forwarding, and DMZ options. It's not the most modern-looking interface, but it's organised logically and doesn't require a networking degree to navigate. For a technical user who wants to dig in, it's adequate. For someone who just wants to set it and forget it, the app covers the day-to-day needs without ever needing to touch the browser interface.

Ongoing management is where the remote access genuinely earns its place. Being able to check what's connected to your network from your phone while you're out, or pause a child's device without being in the same room, is the kind of feature that sounds gimmicky until you actually use it. Owner reviews that mention the app positively tend to focus on exactly these use cases: parental control on the fly, quick checks on network status, the occasional reboot from outside the house. The app isn't perfect (see the firmware section), but for routine management it does what it promises more often than not.

The WAN port, however, is Fast Ethernet only: 10/100 Mbps. This is the port that connects to your modem or ISP-supplied router, and it caps your internet throughput at 100Mbps regardless of what your broadband can deliver. In 2014 when this router launched, 100Mbps broadband was fast. In 2024, with Openreach's full-fibre rollout accelerating and many UK households on 150Mbps, 300Mbps, or even 900Mbps FTTP connections, a 100Mbps WAN port is a genuine problem. It's not a theoretical concern; it's a hard ceiling on your internet speed that you cannot work around in software.

There's no USB port, so no attached storage, no USB printer sharing, no 4G modem failover. There's no link aggregation support (combining multiple LAN ports for higher throughput to a single device). And there's no 2.5GbE anywhere on the router, which is increasingly common on mid-range hardware. For the era this router was designed in, the port layout was reasonable. By current standards, the WAN port in particular is the single biggest reason to think twice about this purchase if your broadband is faster than 100Mbps.

The TP-Link Archer AX23 brings Wi-Fi 6 with OFDMA and MU-MIMO, a Gigabit WAN port, and TP-Link's Tether app, which is generally well-regarded for reliability. The ASUS RT-AX55 adds Wi-Fi 6 with a more capable QoS implementation, ASUS's AiProtection security (powered by Trend Micro), and a track record of longer firmware support than Linksys has managed on older hardware. Both routers handle modern device loads better than the EA6100 by virtue of their Wi-Fi 6 chipsets, and neither has the 100Mbps WAN bottleneck that limits the Linksys.

The EA6100's advantage, if there is one, is simplicity and the Linksys Smart Wi-Fi ecosystem if you're already invested in it. The app is genuinely accessible, and for a user who just wants to replace an ISP router with something that has remote management and basic parental controls, it delivers that without complexity. But on raw capability, future-proofing, security update prospects, and the WAN port situation, the competition has simply moved past it. The honest answer is that the EA6100 is not the best use of money at its current price when Wi-Fi 6 alternatives exist in the same bracket.

The WAN port is the dealbreaker for anyone on fast broadband. If your FTTP connection delivers more than 100Mbps, the EA6100 will cap your internet speed before the Wi-Fi ever gets a chance to be the limiting factor. That's not a minor caveat; it's a fundamental mismatch between the hardware and the broadband infrastructure that much of the UK is now on. Combined with the Wi-Fi 5 chipset's lack of MU-MIMO and OFDMA, the thin firmware update prospects for a decade-old product, and the intermittent reboot requirement that a meaningful number of owners report, the case for buying this new rather than a current-generation alternative is genuinely difficult to make.

Owner reviews ★★★★☆ (4.1) (752 reviews) tell a consistent story: happy in small, simple deployments; frustrating in anything bigger or faster. That's the honest summary. The EA6100 is a product that made sense in 2014 and still makes sense in 2024 only for a very specific, shrinking slice of use cases. For most buyers reading this, there's a better option at a similar price.

The smarter buy at this price point is a current-generation Wi-Fi 6 dual-band router: the TP-Link Archer AX23 is the obvious first look, with a Gigabit WAN port, MU-MIMO, OFDMA, and a well-maintained app, all for a price that overlaps with what the EA6100 currently sells for. You get a router that won't bottleneck your broadband, handles a modern device count more gracefully, and has a better prospect of receiving security updates for the next few years. If you're already on a slow broadband connection and you've found the EA6100 at a price that makes it genuinely cheaper, it'll serve you. But buying it at parity with Wi-Fi 6 alternatives doesn't make sense.

Who should buy it: Sub-100Mbps broadband users, small flats, light device loads, anyone who wants simple setup and basic remote management without spending more.

Who should skip it: Anyone on FTTP or a broadband package delivering over 100Mbps, busy households with 15-plus devices, anyone who needs reliable long-term firmware support, anyone planning to keep this router for more than a couple of years.

Score: 6.5/10. Competent for its era, genuinely limited for the current market. The Linksys Smart Wi-Fi platform is its strongest point. The WAN port is its biggest weakness. Both are hardware facts that no firmware update changes.