Why Your Wi-Fi Is Slow (And 7 Easy Fixes)

This isn’t a placebo. Routers run 24/7 and accumulate stale connections in their connection tables over time. A full power cycle (not just a soft reboot through the admin panel) clears that state.

What to do: Unplug the router from the wall. If you have a separate modem, unplug that too. Wait 30 seconds. Plug the modem back in first, wait for it to fully connect (usually 60–90 seconds), then plug the router back in. Test.

If this fixes it and the problem comes back within a week, set up a weekly scheduled reboot. Many routers have this in the admin settings. If yours doesn’t, a smart outlet on a weekly timer achieves the same result.

Wi-Fi signal travels in all directions from the router, so a router in the corner of the house is throwing half its signal into the wall. The ideal placement is as central as possible in your home, elevated off the floor, and away from the following:

• Microwaves (they operate on the same 2.4 GHz frequency and cause significant interference)
• Cordless phones (same issue)
• Baby monitors
• Concrete or brick walls (very high signal loss — one thick concrete wall can reduce 5 GHz range by 50%)
• Metal filing cabinets, refrigerators, and other large metal objects
• Fish tanks (water absorbs RF signal)

If your router has external antennas, position them vertically for better horizontal coverage or angle them at 45° for a blend of horizontal and vertical coverage across floors.

Modern routers broadcast two (or three) separate networks. The difference matters a lot:

• 2.4 GHz: Longer range, more penetration through walls, but slower — and shared by every microwave, Bluetooth device, and baby monitor in the building. In apartment buildings, 2.4 GHz channels are almost always congested from neighbors’ routers.
• 5 GHz: Faster speeds, much less congestion, but shorter range. If you’re within 30–40 feet of the router, 5 GHz will almost always be faster.
• 6 GHz (Wi-Fi 6E/7): Even faster, essentially uncongested right now, but requires a recent router and device that supports it. See our Wi-Fi 6 vs Wi-Fi 7 breakdown if you’re considering an upgrade.

What to do: In your device’s Wi-Fi settings, look for two networks with similar names — typically one ending in “_2.4G” or “_5G”, or your router may use separate SSIDs like “HomeNetwork” and “HomeNetwork_5G”. Connect to the 5 GHz version and retest.

If your router uses a single SSID for both bands (called “band steering”), you can usually split them into separate networks through the router’s admin panel at 192.168.1.1 or 192.168.0.1.

Slow speeds for a specific device while others are fine almost always means something else on the network (or on that device) is saturating the connection.

On Windows: Open Task Manager (Ctrl+Shift+Esc), click the “Performance” tab, then “Open Resource Monitor”. The Network tab shows exactly which processes are transferring data and how much. Common culprits: Windows Update, OneDrive sync, Steam downloading in the background, or a backup app.

On Mac: Open Activity Monitor (Applications › Utilities), click the Network tab, and sort by “Sent Bytes” or “Rcvd Bytes.”

Network-wide view: Log into your router’s admin panel (usually 192.168.1.1 or 192.168.0.1). Most modern routers have a “connected devices” or “bandwidth monitor” section that shows per-device usage in real time. If one device is pulling far more than the others, that’s your culprit.

If Windows Update is the issue, you can pause updates temporarily: Settings › Windows Update › Pause for 1 week. For a more lasting fix, read our guide to speeding up Windows 11 — it covers limiting background bandwidth use.

Wi-Fi channels are like lanes on a highway. If every router in your building is transmitting on channel 6, you’re all competing for the same airspace. On 2.4 GHz, only channels 1, 6, and 11 are non-overlapping — so you have three choices, and your neighbors probably picked the same one automatically.

How to check channel congestion:

• Windows: Download the free app WiFi Analyzer from the Microsoft Store. It shows every network visible to your device, which channel it’s on, and signal strength.
• Mac: Hold Option and click the Wi-Fi icon in the menu bar, then click “Open Wireless Diagnostics.” Under the Window menu, select “Scan” for a channel map.

What to do: Log into your router admin panel, navigate to Wireless Settings, and manually set the channel to whichever of 1, 6, or 11 has the least competing networks. On 5 GHz, there are many more non-overlapping channels, so congestion is usually less severe — but if you’re in a dense apartment building, try channels 36, 40, 44, or 48 first.

Router manufacturers regularly push firmware updates that fix performance bugs, security vulnerabilities, and connection stability issues. Most home routers ship with auto-update disabled.

What to do: Log into your router’s admin panel (192.168.1.1 or 192.168.0.1, or check the label on your router). Look for “Firmware Update,” “Router Update,” or similar under the Advanced or Administration section. Download and install any available update. The router will reboot — this is normal and takes 2–5 minutes.

If your router is more than 5–6 years old, the manufacturer may have stopped releasing updates. That’s a security risk as well as a performance one — and a signal that it might be time to upgrade (see Fix 7 below).

If you’ve worked through fixes 1–6 and performance is still poor, the hardware itself may be the issue — especially if you have a router from your ISP or anything older than 4–5 years. ISP-provided routers are typically budget hardware that underperforms third-party options at the same price point.

Option A: Wi-Fi Range Extender ($25–$60)

Best for: Good signal in most of the house, but dead zones in a specific area (far bedroom, garage, backyard). A range extender picks up the router signal and rebroadcasts it. Simple setup, lowest cost. Limitation: it creates a second network the device has to manually switch to, and available bandwidth is roughly halved (it’s retransmitting, not adding a new backhaul).

Option B: Mesh Wi-Fi System ($100–$300)

Best for: Multi-story homes, homes with thick walls, or anyone who has tried an extender and found it frustrating. A mesh system replaces the router with two or three nodes that communicate over a dedicated backhaul channel — devices roam seamlessly between them on a single SSID. The difference versus an extender is significant: you get full bandwidth at each node rather than a retransmission penalty.

The TP-Link Deco series and Eero are the two most reliable options at the consumer price point. Both have simple apps and solid coverage for typical 1,500–3,000 sq ft homes.

Option C: New Wi-Fi 6 or 6E Router ($80–$200)

Best for: Replacing a router that’s more than 5 years old, or households with 15+ connected devices. Wi-Fi 6 (802.11ax) handles multiple simultaneous devices dramatically better than Wi-Fi 5 through a technology called OFDMA that schedules transmissions more efficiently. You don’t need Wi-Fi 7 for most homes — Wi-Fi 6 is plenty for 2026.

One more thing: ethernet is still king

For any device that doesn’t move — a desktop PC, a gaming console, a TV — plug it in. A flat Cat 8 ethernet cable runs along baseboards almost invisibly, costs under $15, and delivers 2× the throughput and a fraction of the latency of any Wi-Fi connection.