Your ancient Wi-Fi devices are stealing bandwidth from everything else, and one router setting fixes it

Published Oct 5, 2026, 1:00 PM EDT Jasmine is Software and PC Hardware Author at XDA with years of tech reporting experience ranging from AI chatbots right down to gaming hardware, she's covered just about everything. Whether it's breaking news about the latest AMD NPUs or creating video tutorials on social media platforms, Jasmine has contributed to the world of AI and tech in a variety of ways including interviewing the CEO of Razer, AMD's Director of Product Marketing and the VP of Lenovo. Passionate about gaming and PC technology, she has built countless computers, keyboards and other peripherals - knowing them inside and out. The frustration of watching your high-end Wi-Fi 6 or Wi-Fi 7 devices stutter or drop, even with a powerful multi-gigabit router and a pristine connection, can be a lot. You look around your home and remember the decade-old smart home tablet mounted on the wall, the legacy Kindle sitting on the nightstand, or even the budget smart plug that only speaks 802.11b/g. Wi-Fi isn't a simultaneous broadcast; it's a shared megaphone. When slow legacy clients connect, it forces the entire access point to drop its transmission speed to talk to that single device, hogging precious airtime from everything else. Realistically, you don't have to throw away your old tech to fix your network speed, but you can locate and configure a hidden router setting called minimum basic rate (or legacy rate limiting). You can forcibly evict slow connections from dragging down your airtime and supercharge your entire network. Why do legacy devices slow down the whole network? It's down to physics How does Wi-Fi airtime actually work? Understanding the fundamental physics of multi-client wireless networks can help you see why legacy devices slow down your entire router. The slower speaker essentially dictates the pace. Unlike wired Ethernet switches, where gigabit ports operate independently, a wireless access point shares a single radio channel. To ensure older devices can understand control frames like beacons and acknowledgments, the router must broadcast at the lowest supported modulation rate. This means older devices will likely drag down broadcasts for the entire router. You also risk airtime starvation. If a legacy device connects at 1Mbps or 11Mbps, transmitting a packet to it takes much more time than to an 802.11ax client operating at 1,200Mbps. This single slow device can hog the airwaves and essentially choke total network capacity for every modern device in your home too. Here's how you can adjust your router settings Take advantage of the minimum basic rate The secret weapon here is minimum basic rate and legacy rate controls, as long as your router supports them. On many routers, you'll find these in the advanced settings, and they let you take back control of your airspace. Many enterprise and advanced consumer routers let you configure the minimum basic rate, or you can disable legacy 802.11b rates entirely. This essentially means you're forcing the handshake. By setting the minimum basic rate floor to, for example, 12Mbps or 24Mbps, any device too ancient or sluggish to support that transmission rate is clearly denied access or forced to upgrade, preventing it from dragging down the router's median speed as a whole. To do this, first audit your client list. Check your router's client table to identify any legacy devices that are still connecting at sub-10 Mbps rates. Next, you need to locate the specific rate control settings. You can find these in your router's professional wireless settings or advanced wireless settings. They typically aren't in the standard settings menu, so you may need to dig a bit deeper. You'll be looking for something called legacy rate bumping, basic rate set, or data rate control, something along these lines. Raise the minimum basic rate floor incrementally, monitoring whether your smart home gear stays stable while your overall network throughput metrics improve. You might want to adjust it by a couple of Mbps at a time rather than jumping straight up. You might brick some of your smart home devices So it might be worth taking advantage of an IoT SSID It's worth noting, when you're implementing this setting, that there are some practical hurdles. Some of your smart home gear might essentially break or stop working. When you're aggressively pruning legacy 802.11b rates, this can cause a lot of cheap older IoT devices, especially first-generation smart bulbs or sensors, to instantly lose connection and refuse to rejoin the network altogether. You might brick these older smart home devices and need to replace them. Realistically, the best way to avoid this issue is to find the sweet spot. Balance performance gains with compatibility by keeping legacy rates on a dedicated 2.4GHz IoT SSID while locking down your primary 5GHz and 6GHz bands. This gives you the best of both worlds. Adjust your router settings today And get the speeds you're actually paying for Your network is only as fast as its slowest client unless you actively manage the airwaves. Pruning legacy rates is one of the most powerful, underutilized tweaks in networking. Don't let legacy devices still connected to your network drag you down. Log into your router's advanced wireless settings today and check your minimum basic rates. You can cut off those legacy devices and hopefully boost your overall network performance.