Poor Wi-Fi: What to do if your internet connection is slow or drops out

Have you noticed that Wi-Fi is unstable: Are pages taking forever to load, videos constantly freezing, or even the connection completely losing for several minutes? The problem is familiar to millions of users, according to J’son & PartnersOne in three Russians regularly experiences wireless network outages. The causes can be rooted in router settings or external interference you might not even be aware of.

In this article we will look at all possible sources of problems - from banal router overheating to hidden channel conflicts with neighboring networks, and we'll also give you clear instructions on how to diagnose and fix the problem. It doesn't matter whether you're using TP-Link Archer C6, ASUS RT-AX55 Or a router from your provider—these are universal solutions. Let's start with the simplest and gradually move on to more complex settings.

1. Rebooting the router - why it works

It sounds like a 'turn it off and on' tip, but reboot the router Solves up to 30% of Wi-Fi problems. The problem is that routers, like any device with firmware, accumulate errors in their RAM over time. This leads to freezes in the processes responsible for internet distribution.

How to reboot correctly:

• 🔌 Physical disconnection: Unplug the power cord from the outlet for 30-60 seconds. Do not use the button. Reset - this will reset all settings!
• 📱 Via the web interface: go to the router control panel (usually at 192.168.1.1 or 192.168.0.1) and find the option Reboot in the section System.
• ⚡ Automatic reboot: in some models (for example, Keenetic) there is a function Reboot on schedule - Set it to 3-4 am when no one is using the network.

If your speed temporarily increases after a reboot, but drops again after a few hours, the problem lies deeper. It could be the router. overheats Or its firmware is outdated. Read on to find out more.

2. Checking connected devices: who is stealing your Wi-Fi?

One of the most common culprits of brake problems is foreign devices, connected to your network. These could be:

• 📱 Neighbors who hacked your password (especially if it's simple like 12345678).
• 💻 Old gadgets (for example, laptop 2012 or IP camera), which constantly exchange data with servers.
• 🎮 Game consoles or TV boxes downloading updates in the background.

How to check the list of connected devices:

1. Log in to your router's web interface (logins and passwords are usually found on a sticker on the back).
2. Find the section Wireless network → Client list (or DHCP → ARP table).
3. Compare the MAC addresses of your devices with those that should be on the network. Unknown addresses are a reason to change your Wi-Fi password.

If you find “extra” devices:

• 🔒 Change your Wi-Fi password to a complex one (at least 12 characters with numbers and special characters).
• 🔄 Turn on WPA3 instead of WPA2 (if the router supports it).
• 🚫 Turn it off WPS - This protocol is vulnerable to hacking.

3. Optimizing your Wi-Fi channel: how to avoid interference from neighbors

Your router operates at a certain Wi-Fi channel (from 1 to 13 in the 2.4 GHz band and up to 165 in 5 GHz). If neighbors are using the same channel, interference occurs—as if you were talking to someone else on the same frequency at the same time. As a result, speed drops and ping fluctuates.

How to choose a free channel:

1. Install the application on your smartphone Wi-Fi Analyzer (Android) or NetSpot (iOS).
2. Check which channels are occupied by neighboring networks. Ideally, your channel should be 2-3 positions behind the busiest ones.
3. Go to the router settings section Wireless network → Channel and choose a free one.

If your router supports Auto Channel Selection (automatic channel selection), better disable this featureAutomatic channel selection algorithms often make mistakes, choosing not the optimal channel, but simply the first available one.

4. Updating your router firmware: why it's critical

A router's firmware is its "operating system," which controls all its functions. Outdated firmware can contain bugs that can cause:

• 🐢 Wi-Fi speed is dropping.
• 🔄 The router reboots spontaneously.
• 🚫 New standards don't work (for example, Wi-Fi 6).

How to update firmware:

1. Find out the router model (written on the sticker).
2. Download the latest firmware from the manufacturer's official website (TP-Link, ASUS, Keenetic etc.).
3. Go to the router's web interface and find the section System → Software update.
4. Upload the downloaded file and wait for the process to complete (do not turn off the router!).

What happens if I interrupt a firmware update?

A router can become "bricked"—it will no longer turn on or provide network connectivity. It can only be restored through a special mode (for example, TFTP For ASUS or Recovery Mode For TP-Link).

After update:

• ✅ Reset your router to factory settings (button Reset for 10 seconds).
• ✅ Reconfigure your network—sometimes old configurations conflict with new firmware.

⚠️ Attention: Firmware from third-party developers (for example, DD-WRT or OpenWRT) can improve functionality, but they can also "kill" the router if installed incorrectly. Use them only if you are confident in your skills.

5. Problems with your provider: how to distinguish your mistakes from others

Sometimes it's not the router's fault, but provider. For example:

• 📉 Speed ​​drop due to network congestion in the evening hours.
• 🔌 Cable break or malfunction at the station.
• 📡 Problems with DHCP — the router does not receive an IP address.

How to check:

1. Connect your ISP's cable directly to your computer (bypassing the router). If your internet connection is poor, it's your ISP's fault.
2. Call support and ask about current incidents in your area.
3. Check the speed on the website Speedtest.net — if it is much lower than stated in the tariff, demand a recalculation.

⚠️ Attention: If the provider uses PPPoE- connection, check that the login and password in the router settings have not been reset. Sometimes after a failure, they are reset, and the router cannot log in.

6. Physical interference and router location

Even the most powerful router is useless if it blocked by walls, furniture or household appliancesHere's what's interfering with the signal:

• 🧱 Concrete walls (weaken the signal by 50–70%).
• 🔌 Microwaves (they operate at a frequency of 2.4 GHz and create strong interference).
• 💡 Mirrors and aquariums (reflect the signal, creating “dead zones”).
• 📺 Televisions and speakers (metal cases shield Wi-Fi).

Optimal router placement:

• 📍 In the center of the apartment, at a height of 1.5–2 meters (for example, on a closet).
• 🚫 Not in a closed closet or behind the TV.
• 📶 Antennas must be directed vertically (if the devices are on the same floor) or at an angle (if on different floors).

If relocating the router is not possible, consider the following options:

• 🔄 Repeater - enhances the signal in "dead zones" (for example, TP-Link RE605X).
• 🔗 Mesh system - several access points operating as one network (for example, ASUS ZenWiFi).
• 🔌 Powerline adapters — transmit the Internet through electrical wiring (useful for private homes).

7. Security Settings: Why WPA3 and MAC Filtering Can Slow Down Your Network

Some security features designed to protect your network are in practice impair its performance. For example:

• 🔐 WPA3 - safer than WPA2, but some older devices (Android 8, Windows 7) connect to it with delays.
• 🔍 MAC address filtering — the router checks every request, which increases ping.
• 🛡️ Firewall enabled — may block legitimate traffic (e.g. online games).

Optimal security settings:

• 🔒 Use WPA2/WPA3 Mixed Mode (if the router supports it) - this will ensure compatibility with all devices.
• 🚫 Disable MAC filtering - it gives a false sense of security (MACs are easy to spoof).
• 🌐 Turn on Guest network for friends' devices - this isolates them from your main network.

If after the changes the speed has increased, but problems with connecting individual devices have appeared (for example, Xiaomi smart light bulb), check:

• Does the device support the selected security standard (WPA3 may not work with gadgets before 2018).
• Is the router's firewall blocking protocols required by the device (for example, UPnP for game consoles).

8. Hardware malfunctions: when should you take your router in for repair?

If none of the above helps, it might be the router physically defectiveSigns of hardware problems:

• 🔥 The router gets very hot even after rebooting.
• 📡 The signal disappears if you touch the router.
• 🔌 Ethernet ports do not work or work intermittently.
• 🔄 The indicators flash randomly or do not light at all.

What can be done:

• 🛠️ Disassemble and clean — Dust inside the case can cause overheating. Use a can of compressed air.
• 🔌 Check the power supply - if it is swollen or hot, replace it (use only the original one!).
• 🔄 Re-flash — sometimes the firmware crashes due to a power surge.

If your router is older than 5 years, it might be the hardware is simply outdated. Modern standards (Wi-Fi 6, OFDMA) require more computing resources, and older chips can't cope. In this case, the only solution is buy a new router with support 802.11ax (For example, TP-Link Archer AX21 or ASUS RT-AX55).

⚠️ Attention: If the router displays an error "DNS Probe Finished No Internet", the problem may not be with it, but with the DNS settings on your devices. Try manually entering the DNS from Google (8.8.8.8) or Cloudflare (1.1.1.1).

FAQ: Frequently Asked Questions about Wi-Fi Problems

Why does Wi-Fi work fine on my phone but slow down on my laptop?

Most likely the problem is Wi-Fi adapter driver on the laptop. Update it through device Manager (Windows) or install from the manufacturer's website (for example, for Intel AX200 or Qualcomm Atheros). Also check if the mode is turned on Energy savings for the adapter - it limits the speed.

Is it possible to boost Wi-Fi signal using foil or a can?

Theoretically, yes—metal surfaces reflect the signal, creating a directional antenna. But in practice, the effect is minimal, and improper placement can, on the contrary, worsen coverage. It's better to buy an inexpensive repeater or set up one Beamforming in the router (if supported).

Why is the cable speed 100 Mbps, but Wi-Fi only 20?

This is normal for the standard 802.11n (Wi-Fi 4). The maximum speed in the 2.4 GHz band is about 150 Mbps, but actual throughput is lower due to interference and overhead. To get speeds closer to cable speeds:

• Switch to range 5 GHz (if the router supports it).
• Use the standard 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6).
• Reduce the number of connected devices.

How can I check if my neighbor is stealing my Wi-Fi?

Go to your router settings (192.168.1.1) and look at the list of connected devices (DHCP Clients or Wireless Clients). Unknown MAC addresses are a reason to change your password. You can also use applications like Fing (Android/iOS) that scan the network and show all connected gadgets.

Why does Wi-Fi turn off at night?

Possible reasons:

• 📡 Automatic update router or devices (for example, Windows Update).
• 🔄 Router overheating due to long-term work.
• 📉 Traffic throttling provider (if you have an unlimited tariff with a “gray” speed at night).
• 🕒 Sleep timer in the router settings (check the section Schedule or Parental Control).

Solution: Disable automatic updates on your devices, check your router's temperature, and contact your ISP.