A trip on the subway often turns into an ordeal not only because of the crowds but also because of the intrusive digital noise. Every time I connect to the free network Metro_Free_WiFi, you're forced to watch videos or scroll through banner ads to access the internet. This isn't just annoying, it also wastes precious travel time and your mobile device's data.
Many users mistakenly believe this is the inevitable price to pay for free access. However, there are technical ways to bypass the authorization page or block pop-ups at the system level. In this article, we'll discuss real methods that will help you save your nerves and time.
Before taking action, it's important to understand that the metro's authorization system is a complex software system that is periodically updated. What worked yesterday may have been fixed by network administrators today. However, the basic principles of the protocols allow for workarounds.
How does a captive portal work in the metro?
The technology you are encountering is called Captive PortalWhen your device connects to an access point, the router prevents you from accessing the outside world, redirecting all requests to a special authorization server. This is where ads are displayed. Understanding this mechanism is the first step to bypassing it.
The system analyzes incoming data packets. If you attempt to access a website using the unsecured HTTP protocol, you will be redirected to the login page. If the request is made over secure HTTPS, the connection may be reset or redirected. Depth Packet Filtering allows the provider to control all traffic until authorization.
There are several layers of protection employed by telecom operators. Some employ simple DNS spoofing, while others employ more complex port forwarding methods. Depending on the method used in your city, the effectiveness of blocking methods may vary.
⚠️ Attention: Bypass methods may stop working after your provider upgrades their equipment. Always have an alternative access method, such as mobile internet, on hand.
Additionally, it's important to consider the legal aspect. Using third-party software to bypass restrictions may be against the terms of use of a particular network. We consider these methods solely for educational purposes to improve digital literacy.
Using DNS to block ads
One of the most effective and secure ways to remove ads is to change the DNS server on your device. DNS (Domain Name System) translates domain names into IP addresses. Using a specialized server can block requests to known advertising domains before they even load.
To do this, you'll need to manually enter DNS addresses in the network settings. On modern smartphones, this is done through the Settings → Connections → Wi-Fi → IP SettingsSelect a static IP and enter the addresses of the servers that filter content. Popular options include DNS.adguard.com or 1.1.1.2 (Cloudflare for Families).
The advantage of this method is that it works across all applications, not just the browser. However, if your ISP uses hard redirection of all DNS requests to its servers (DNS hijacking), this method may not work. In this case, the system will ignore your settings and substitute its own.
- 📱 Android: Go to your Wi-Fi settings, click on the network gear, select "Advanced" and enter in the DNS 1 field
94.140.14.14. - 🍏 iOS: Go to your Wi-Fi settings, click the "i" icon next to your network, select "DNS Setup" → "Manual" and add the server.
- 💻 Windows: Open Control Panel → Network Connections, select adapter properties and TCP/IPv4 protocol.
- 🖥️ macOS: In the system network preferences, select Wi-Fi, click Advanced, and go to the DNS tab.
After applying the settings, it is recommended to clear the DNS cache. On Android, this can be done by toggling airplane mode on and off. On a computer, use the command ipconfig /flushdns in the command line will update the cache.
Browsers with built-in tracker protection
If changing system settings seems too complicated, you can use specialized browsers. Unlike standard ones, Chrome or Safari, they have built-in ad and script blocking mechanisms that can prevent authorization pop-ups from appearing.
Browsers based on the Chromium engine with extensions or native protection are considered the most effective. For example, Brave or DuckDuckGoThey automatically block known trackers and ad networks. When trying to connect to metro Wi-Fi, these browsers may simply fail to load the page with the ad, redirecting you directly to the target website.
It's also worth paying attention to Incognito mode. Sometimes the login page is cached by the browser. Launching in Incognito mode prevents the use of old data and can help skip the advertising stage if the server doesn't strictly check each request.
However, modern authentication systems can detect a browser's User-Agent. If they detect that a request is coming from a blocker, connection errors may occur. In this case, the "lazy tab" method can help.
⚠️ Attention: Some banking apps may not function properly when using aggressive ad blockers. Disable them when accessing financial services.
Another caveat is HTTPS. If the metro login page uses a secure connection, the browser may display a security warning if the certificate is tampered with. Don't ignore such warnings if you're unsure of the source.
The Secret of Incognito Mode
Incognito mode doesn't save cookies or history. This is useful, as some subway networks "remember" your device using cookies and require repeated advertising after a certain period of time. A clean session is sometimes perceived as a new user with preferential terms.
Login automation apps
App stores offer utilities designed specifically for working with public WiFi networks. They automate the login process by filling in required fields or emulating browser behavior. Examples of such programs include WiFi Map or specialized scripts for Termux (for advanced users).
These apps work by intercepting the authorization request. Instead of displaying an ad page, the app itself sends the necessary data to the provider's server or waits for a timer to expire (if the ad is temporary), and then redirects you to the desired page.
Some apps use crowdsourced password and key databases. While a password isn't usually required for Metro, the automatic reconnection feature can be useful if the connection keeps dropping.
| Application name | Platform | Lock type | Complexity |
|---|---|---|---|
| AdGuard | Android / iOS | Traffic filtering | Low |
| Blokada | Android | Local VPN | Average |
| WiFi Map | Android / iOS | Auto-login | Low |
| Termux | Android | Scripts (Python/Bash) | High |
Download software only from official stores Google Play or App StoreThird-party APK files may contain malicious code that will steal your data.
☑️ App Security Check
The Lazy Tab Method and Timeouts
There's a simple but effective trick that doesn't require any software installation. Many advertising systems in the metro have a timeout. If you open a tab with an ad and do nothing, you'll be allowed online after 15-30 seconds (or immediately, depending on your settings). But there's a catch.
If you try to open a heavy website immediately after connecting, the timer may reset. The "lazy tab" method involves opening a lighter page (for example, example.com or an empty tab), wait for the ad to appear, but do not close Browser. Let the timer run in the background.
Some users use a "background loading" technique. Open the login page, wait for the "Login" button to appear or for the countdown to complete, then minimize the browser and open the desired app. Often, the system already considers the session active.
This method does not work everywhere, as it depends on the specific implementation. Captive PortalIn some cities, subway systems have implemented a system requiring users to watch ads to the end, and simply waiting doesn't help. In such cases, the only solution is changing the IP or MAC address.
You should also try disabling your mobile data before connecting to WiFi. Sometimes your phone tries to balance traffic, which can prevent the login page from displaying correctly or the authorization timer from completing.
Changing the MAC address of a device
Networks often identify users by their MAC address—the unique identifier of their network card. If the system "remembers" that you've already viewed an ad but your session has expired, it will request it again. Changing your MAC address tricks the system into thinking a new device has connected to the network.
In modern versions of Android (starting with 10) and iOS (starting with 14), this feature is built-in by default and is called "Private Wi-Fi Address" or "Random Address." It can be enabled in the settings for a specific network. Try disabling and re-enabling this feature.
For more advanced users, there is the option to randomize the MAC address via the terminal (root access is required on Android). The command ip link set wlan0 address XX:XX:XX:XX:XX:XX It allows you to spoof an address. However, on the metro, this can be excessive and difficult.
⚠️ Attention: Frequent MAC address changes may be interpreted by the server as an attack or suspicious activity, which will result in temporary blocking of access to your connection point.
This method is worth using if other methods fail, or if you want to completely anonymize your online presence. Keep in mind that changing your MAC address will remove your connection to previous sessions, which can be both a benefit and a drawback.
Frequently Asked Questions (FAQ)
Is it safe to use third-party DNS on the metro?
Using public DNS (such as those from Google, Cloudflare, or AdGuard) is generally safe and even enhances privacy, as your WiFi provider can't see which websites you visit (though they can see your IP addresses). However, on corporate or government networks, this may raise suspicions.
Why do ads appear again after reconnecting?
The authentication server remembers your device by its MAC address or cookies. A session has a limited lifetime. To avoid this, use incognito mode or apps that retain sessions longer.
Is it possible to completely remove ads on iPhone without jailbreaking?
Completely removing system ads at the iOS level is difficult without using restriction profiles or specialized browsers. The best way is to use Safari with content blockers from the App Store enabled (such as AdGuard for Safari).
Does ad blocking affect internet speed?
On the contrary, ad blocking is usually accelerates Page loading is improved, as the device doesn't need to load heavy videos and ad network scripts. Bandwidth is used more efficiently.
What should I do if there is no internet at all after blocking?
This means the blocking method disrupted the authorization process (Captive Portal didn't receive login confirmation). Disable the blocker, wait for the ad to appear, "pass" it, and only then enable protection.