We Ran a Router for 12 Months Without Resetting It — Here's What Actually Happened

Somewhere between "turn it off and on again" and "have you tried reinstalling Windows," the factory reset became the internet's favorite cure-all for router problems. Spend five minutes on any networking subreddit or tech support forum and you'll find someone confidently recommending a full wipe every three to six months like it's a seasonal tune-up. But is that actually grounded in anything? Or is it just advice that got repeated enough times that it started sounding like wisdom?

We decided to find out the hard way.

The Setup

We pulled six mid-range routers from three manufacturers — the kind of hardware that lives in most American homes — and divided them into three groups. Group A ran continuously for 12 months without any resets whatsoever. Group B got factory wiped every six months, exactly as the forums prescribe. Group C got wiped every three months, which is the more aggressive recommendation you'll sometimes see floating around.

All units ran on identical ISP connections (a 500 Mbps cable plan, which is pretty representative of what most households in the US are actually paying for) and served households with similar device counts — between 20 and 28 connected devices, including phones, laptops, smart TVs, and the usual assortment of smart home gadgets. We measured throughput, latency, connection drop frequency, and memory utilization at consistent intervals across the full test period.

We also kept a log of any spontaneous performance complaints from the actual people living in those homes, because real-world annoyance matters more than a lab benchmark.

What We Found in the First Six Months

Honestly? Not much separated the groups early on. All six routers performed within a few percentage points of each other through the first four months. Throughput stayed consistent, latency was stable, and nobody filed a complaint about their Netflix buffering.

Around the five-month mark, we started seeing something interesting in the no-reset group: a gradual uptick in memory utilization. These routers were holding onto more active connections, accumulating more logged data, and — in one case — running a DHCP lease table that had grown noticeably bloated with ghost entries from devices that hadn't been on the network in weeks. The firmware wasn't doing a great job of cleaning up after itself.

Did that translate into real-world slowdowns? Marginally. We're talking about throughput dipping roughly 8-12% from baseline on the no-reset units by month six. Not the kind of thing most people would notice during a Zoom call, but detectable in back-to-back speed tests.

The Six-Month Cliff

This is where things got more interesting. After the six-month reset group got wiped and reconfigured, their performance snapped back to near-baseline numbers almost immediately. The memory cleared out, the DHCP table started fresh, and the routers essentially felt new again. The no-reset group, meanwhile, kept drifting.

By month nine, the unwiped units were showing throughput degradation averaging around 18% from their original baseline. More importantly, we started seeing occasional connection drops — brief but real — that the reset groups weren't experiencing at the same rate. The households noticed. One family complained about their Ring doorbell going offline intermittently. Another reported their work-from-home laptop dropping video calls a couple times a week.

Those are the kinds of problems that don't feel like "router memory bloat." They feel like "my internet is broken."

Does the Three-Month Reset Actually Buy You Anything Extra?

Short answer: not really. The three-month reset group and the six-month reset group performed almost identically across the full 12 months. The more aggressive schedule didn't produce measurably better speeds, lower latency, or fewer drop events. What it did produce was more time spent reconfiguring WiFi passwords, re-pairing smart home devices, and generally dealing with the hassle of a full reset — which, depending on how complex your home network is, can be a 30-minute headache or a two-hour nightmare.

If you've got a lot of smart home devices, custom port forwarding rules, or a complicated guest network setup, a factory reset has real friction costs. Doing it twice as often as necessary for zero measurable benefit doesn't make a lot of sense.

The Reboot Loophole

Here's something worth separating out: a factory reset and a simple reboot are very different things. A reboot — just power cycling the router — cleared a significant portion of the memory accumulation we observed without wiping any settings. In our testing, routers that got rebooted monthly (not reset, just restarted) showed much less performance drift than the completely untouched units, even without a full wipe.

If you're the kind of person who never thinks about your router until something breaks, adding a monthly reboot to your routine — even an automated one via a smart plug on a schedule — will probably handle 80% of what a factory reset accomplishes, with none of the reconfiguration pain.

So What's the Verdict?

The forums aren't entirely wrong, but they're prescribing the nuclear option when a much lighter touch usually does the job. Here's how we'd break it down:

If you never reboot your router: Yes, a factory reset every six months is probably worth doing. You're letting a lot of junk accumulate, and it will eventually affect your experience.

If you reboot monthly: You're probably fine skipping the full reset entirely, or doing it once a year at most. Your router is staying cleaner on its own.

If you're troubleshooting a specific problem: A factory reset is a legitimate diagnostic step. But doing it prophylactically every few months "just in case" is mostly security theater if you're already maintaining the hardware with regular reboots.

The ritual isn't a myth — there's real data behind the recommendation. But the frequency that gets passed around online is overkill for most households. A simple reboot schedule gets you most of the benefit with a fraction of the hassle, and that feels like the more practical answer for the average American home network in 2024.