Our Android mobile devices have two technologies that give access to Internet: mobile networks and Wi-Fi. However, this translates into a lot of different bands, starting with the 2,4 or 5 GHz of Wi-Fi and continuing through another very wide range for telephony, from 2G to 4G networks, even reaching 5G in these times. So what is there to do when Internet is slow? In most cases, this problem has one or even more solutions that depend on both the mobile phone and the network you are connected to.
Before you start trying to figure out why Internet is working slow On a mobile device, the key is to narrow down the problem and identify if it is a fault related to the Wi-Fi or with the connection to mobile networks. And we will start on the basis of a speed test that we can do online from the previous link, or through the application available in the Google Play Store.
Having run the speed test, we will have two data in Mbps that refer to the speed of download and uploadThe one that interests us most, obviously, is download speed, since it determines how quickly pages, videos, social media, or streaming content loads. And this data, which for example could be... 50 Mbps, we should compare it with the contracted speed. As a reference, we must bear in mind that 4G has a theoretical maximum of 150 Mbps in download and that a fiber optic network, for example, can offer us speeds of 600 Mbps or more. However, what's important isn't just the theoretical maximum, but what actual result have we obtained us on the mobile and how it behaves in daily use.
In addition to the speed of ascent and descent, many tests show the ping or latency, which indicates the time it takes to establish communication with the server. high latency It causes a feeling of slowness even though the download speed is not bad, especially when playing online or making video calls.
Slow Wi-Fi on Android what is the solution?
The maximum connection speed will be limited by the contracted speed. If we have contracted 600 Mbps For example, with symmetrical connections, the maximum speed we can achieve over Wi-Fi will be this. However, we must keep in mind that wireless connections They rarely reach the theoretical maximum Therefore, a 600 Mbps connection will almost never deliver this speed over Wi-Fi, especially if we use the 2,4 GHz band or there are many devices connected.
Even so, it would be strange if, for example, we only received 25 Mbps to our mobile device if we are close to the router, with a good signal and no network congestion. In that case, it's worth checking several things: the mobile phone, the router, the Wi-Fi band being used, the channels, and possible network congestion.
What do I do if the Wi-Fi is slow?
The first thing to check is Wi-Fi support of your mobileIn other words, the maximum capabilities of your Wi-Fi connectivity, because your modem will also have a maximum speed limit, and this will be the "ceiling" you can reach. A very old mobile phone with Wi-Fi 4 (802.11n) will never reach the same speeds as a recent one with Wi-Fi 5 or Wi-Fi 6.
Next, it is recommended Test the speed on another device If possible, compare the speeds to see if the problem is with your device or the network itself. If the connection is fast on another phone, tablet, or computer, the problem is with your Android device; if they're all slow, the issue is with your router or your internet service provider.
You should also check if Wi-Fi is working over 2,4 or 5 GHz, and the channel you are operating on. With apps like WiFi Analyzer You can see the channel saturation and, consequently, modify the channel of your Wi-Fi to work in a less congested one, something especially useful in buildings with many neighbors.
Furthermore, it's a good idea restart periodically Both the router and the smartphone itself. Restarting the router clears internal processes that may be affecting performance, and restarting the phone closes background processes that might be using Wi-Fi without you noticing.
Another effective measure is eliminate unnecessary networks saved on your Android device. If your phone has several Wi-Fi networks saved (your neighbor's, the bar's, your work's), it may try to connect to networks with weaker signals, causing interruptions and slow speeds. You can forget the networks you don't use in your Wi-Fi settings.
Optimize your smartphone's Wi-Fi settings
In addition to the network, the mobile phone itself may need some configuration improvements to make better use of Wi-Fi:
- Update the systemHaving Android and device firmware updated corrects errors that can affect the connection, improves compatibility with modern routers, and solves stability problems.
- Check out the energy saving optionsMany battery-saving modes reduce background activity and can limit Wi-Fi connection to save energy, causing outages or reduced speed.
- Control background appsCloud backup applications, photo galleries, or streaming services may be uploading or downloading data without your knowledge, consuming storage space. a large portion of the bandwidth.
- Check that there are no problematic "cleaning" appsSome unreliable cleaning or antivirus apps always run in the background and can interfere with the connection, filtering or limiting traffic.
Using the correct Wi-Fi band: 2,4 GHz vs 5 GHz
One of the most frequent causes of slow Wi-Fi on your mobile is being connected to the least suitable band:
- 2,4 GHz band: greater range and better behavior with obstacles (walls, ceilings), but more interference and lower speed. It's ideal if you're far from the router.
- 5 GHz band: less interference and higher speedPerfect for streaming, gaming, or heavy downloads; in return, it has less range and degrades more with obstacles.
If your router offers two networks (for example, "MiWiFi" and "MiWiFi-5G"), check your phone's Wi-Fi settings to see which one you're connected to. When near the router, it's recommended to connect to the... 5 GHz networkFurther away or with several walls in between, the 2,4 GHz band usually performs better.
Distance to the router and physical obstacles
If the problems persist, check that you are not using a case too thick on your mobile device, or that it's preventing its antennas from functioning correctly. Also, make sure you're not too far from the router and that its antennas are properly oriented (if it has external ones).
On the other hand, check that there aren't too many obstacles between the router and your device such as walls, metal or wooden furniture, concrete structures, large mirrors, or aquariums. All of these can drastically reduce coverage.
It's also advisable to avoid placing the router next to... appliances that generate interference such as microwaves, some cordless phones, or even certain wireless doorbells, especially if they use the 2,4 GHz band.
You can also check if they don't exist on websites like "detectordefallos.es". problems with the operator or general network incidents that may explain a temporary drop in speed.
Wi-Fi congestion, noise, and saturated channels
In buildings with many routers, all broadcasting on 2,4 GHz, it's easy for your network channel to be very congestedWhen multiple access points use the same channel or adjacent channels, interference occurs and the speed decreases.
With applications like WiFi Analyzer you can:
- See what channel does your router broadcast?.
- Detect how many nearby routers are broadcasting on the same or similar channels.
- Identify the recommended channels with less saturation.
Then, from the router's configuration panel (usually by entering 192.168.1.1 (in your browser), you can change the Wi-Fi channel to a less congested one. A simple channel change can noticeably improve stability and speed.
Be careful with phone cases and hardware
As mentioned, although it may seem like a minor detail, certain Mobile phone cases can act as a barrier For the signal, both Wi-Fi and mobile data. Metallic materials, multi-layered cases, or very robust designs can interfere more than you might think.
A simple test involves doing a speed test Test one test with the case on and another without. If you notice a clear difference, the case is probably not suitable for a good connection.
It should also be considered that a very old telephone It may have a limited Wi-Fi chip, with less efficient standards and antennas. Even if your router and fiber optic connection are excellent, the mobile device's hardware could be the bottleneck.
Slow internet on Android with mobile networks, what can I do?
Mobile networks have a theoretical maximum speed which will be what, at most, we can achieve in any circumstance. If it is 4G, for example, we can only go up to 150 Mbps Download speeds are lower under ideal conditions, while 5G offers much higher theoretical speeds. However, mobile networks are... more unstable and are often affected by saturation, due to the actual coverage in your area and the type of network (2G, 3G, 4G or 5G) to which the phone is connected.
It's even more complicated to reach the theoretical maximum with Wi-Fi. Furthermore, Speed ​​can vary greatly by simply moving a few meters, changing rooms, or entering a basement.
What to do if 4G or 3G is slow
In summer, in coastal areas, it is normal for congestion Networks and the internet can run slowly or unstably. The same happens at large events or when crowds gather for any other reason (concerts, stadiums, packed shopping malls, etc.). The more people using data simultaneously on the same antenna, lower speed There's something for every user.
En interior Mobile networks don't work as well either, especially in buildings with many floors or thick concrete. We should check that the operator settings Ensure they are properly configured (correct APN, compatible network mode, roaming if applicable). Also, make sure there are no background apps consuming bandwidth and that you're not using an overly thick case that obstructs the device's antennas.
We may experience slowness if there is operator technical problemsWe will check this on sites like "detectordefallos.es" or on the company's own app, and if the coverage It is not good. In this case, it is recommended to select the 3G network manually, or even 2G in areas with very weak signal, since sometimes a slower but stable network offers a better experience than a very unstable 4G.
There are times when the device tries to connect with 4GHowever, the signal is weak and connection speed is noticeably affected, with constant dropouts. Temporarily forcing 3G can improve calls and messaging when 4G coverage is poor.
Restarting your device is often recommended when you experience a slow internet connection. This simple step allows your phone to re-register with the network, frees up internal processes, and corrects minor network errors.
Finally, it's advisable to check, with a reliable antivirus program, that there are no malware threats. malware that is slowing down the speed Internet connection on our smartphone, for example by sending data in the background or creating a local proxy.
Restore connection on Android
There may be an error on your Android phone, there is something wrong configuredThis is causing your mobile data to run slowly, which is understandably frustrating. If you've tried several solutions but nothing has worked, then we can try... restore all connection dataThis way, all connection settings on the phone return to their original state, allowing everything to work correctly again.
The steps To do this, you need:
- Enter the Settings from your phone.
- Look for the section Security o System (according to the layer) and access it.
- Next, you should look for the tab with the name of Resetting o Reset options.
- Press on Reset network settings.
- Next, click on the button to confirm the action.
- Now you will need to enter your PIN o password.
- Tap OK and wait for the mobile to reset the network settings.
Please note that this will erase saved Wi-Fi networks, paired Bluetooth devices, and mobile data settings, so You will have to re-enter your passwords and re-link devices.
Connecting with a VPN
It is becoming increasingly common for users with Android devices to use a VPN to connect to the Internet. Although this gives us greater privacy when browsing and allows us to avoid geographical restrictions, it is possible that the connection is slowerMany free VPN servers are overloaded and add more bandwidth to your data.
If you're using a VPN when you notice the connection is slow, try disconnecting and browsing briefly without it, or disconnect and reconnect using a different server. If the connection improves, you've found the problem.
It could be the case that is this the cause of the bad connection and it's not actually a problem with your mobile data or Wi-Fi. Something similar can also happen if you're browsing through a proxy configured in the browser.
Be careful if you have activated the mobile data saving
Some customization layers have a mode that allows save mobile data on the phone. One of the consequences of this type of function may be that the speed when navigating will be worsebecause background connections, streaming quality, and synchronizations are limited.
This could be the cause of your current navigation problems. If you've used it in the past, it's worth reviewing. check if it's still activeOr simply double-check it, just in case you configured it by mistake. This is checked as follows:
- Open the phone settings.
- Sign in Network and Internet o Connections.
- Sign in Data saving.
- Check if it is activated.
- If it is activated, it proceeds to deactivate it.
Apps or battery saving mode
There are applications that may be causing connection problems on your device. Above all, those used to 'clean the device' or 'scan for viruses on the mobile phone'Most of these apps run in the background and may be limiting your internet connection by trying to filter, compress, or monitor traffic.
Battery saving mode also limits connection of your device in order to get a few more minutes of battery life. If you have this mode enabled, your device's connection may be slower, apps may not sync correctly, or necessary background processes may be stopped.
On older phones or those with limited memory, having many apps open or active processes can also slow down the system overall, resulting in... longer loading times of websites and applications, although the internet isn't particularly bad.
Restart in safe mode and check for problematic apps
If you suspect that a specific application is affecting the connection, you can try reboot the phone in safe modeIn this mode, Android temporarily disables all downloaded apps and only keeps the essential system apps.
Important: Safe mode temporarily disables all downloaded applications, allowing you to check if the connection improves without them.
The way to restart your phone in safe mode depends on the model. To learn how to restart your phone in safe mode, visit [link to safe mode page]. manufacturer's support website or the help of your customization layer.
Check If the problem disappears once you boot into safe mode, then the problem is likely caused by an installed application. To locate it:
- Restart your phone normally to exit safe mode.
- Start uninstalling one by one apps you've recently downloaded or that you suspect might interfere with the network (unreliable VPNs, aggressive optimizers, etc.).
- Each time you delete an app, restart your phone and check if the problem is solved.
- Once you identify the problematic application, avoid reinstalling it and look for more reliable alternatives.
How to correctly interpret the speed test on your mobile phone
Running a speed test on your mobile phone is essential to diagnose a problem with your Wi-Fi or mobile data network. And while it's true that you can do it yourself... detect the symptoms When using a web browser or any app that connects to the Internet (pages that don't load, videos that stop, endless downloads), a speed test is the most accurate.
Far from requiring complex software or external desktop tools, the check will take you just a few seconds with the appropriate applications or from the browser itself, and knowing well what each value shown in the results means.
Android speed test apps
On Android you can use both specific apps such as running tests from a browser:
- SpeedTestA widely used classic, with both a web version and an app. It measures upload and download speeds, latency, and identifies the network you're connected to. completely free, although it includes some advertising.
- nPerf: in addition to measuring speed, analyzes other parameters such as browsing quality or streaming performance, and even carrier coverage. It offers easy-to-interpret graphs, even for non-expert users.
Speed ​​test from the browser
Through the browser, without needing to install appsYou can also run a speed test. Google's own search engine includes one. Just:
- Open the Google homepage in your mobile browser.
- Type "speed test" or "speed test" in the search box.
- Click on the first result shown by the integrated test and tap the button to start the test.
This option is useful for a quick check when you don't want to install anything.
What do the speed test results mean?
Once you've run the speed test, either with apps or through your browser, a series of data will appear as results. If you're not familiar with these... terms relating to the connectionThese are their meanings:
- Upload speedExpressed in Megabits per second (Mbps), this refers to the time it takes the mobile device to upload data to the network. The higher the speed, the faster they will be sent your photos, videos or files to the cloud.
- Download speedAlso measured in Mbps, this indicates the speed at which data is downloaded from the internet to your mobile device. It directly affects website loading speed, video playback, and file download speeds.
- Ping or latency: It is measured in milliseconds (ms) and represents the time it takes your device to receive a response from a remote server. The lower, the betterespecially in online video games and video calls.
How to interpret the results of the speed test
The ideal speed will always depend on the your use of the Internet On your mobile device. For messaging and basic browsing, a few Mbps may be enough, but for high-definition streaming, online gaming, or large downloads, you'll need considerably more.
It is important to keep in mind:
- The actual speed on mobile will be less to the one contracted by fiber, especially by Wi-Fi and if there are more devices connected.
- A slow speed and/or a high ping don't always mean there's a problem; it could be what your plan offers or the network available in your area.
- If the result is significantly lower than what you have contracted for on an ongoing basis, then there may be a [reason/consideration - context needed]. problem with the line, the router or the mobile.
Before blaming the operatorCheck out some quick points:
- Remove the phone case and repeat the test.
- Get closer to the router and avoid obstacles.
- Check for coverage problems if you're using mobile data.
- Restart the router and wait a few minutes.
- Reset network settings on the mobile if nothing changes.
Other factors that influence internet speed on Android
In addition to Wi-Fi and mobile data, there are a number of additional factors which can make the internet seem slower than it actually is, even with good coverage and a good contracted speed.
Too many apps and tabs open
Mobile data plans and Wi-Fi networks can only keep up with a certain number of simultaneous requestsIf you have many tabs open in your browser and many applications using data at the same time, your mobile phone and connection can become overloaded.
Closing apps and tabs you're not using frees up space. RAM, CPU, and bandwidthThis results in smoother navigation. Android usually handles this well, but it doesn't always get it right, especially on phones with limited memory.
Too many users on the same Wi-Fi
On a home Wi-Fi network, bandwidth is shared. If your roommates or family members are streaming TV shows, playing online games, or downloading large games, it's normal for your connection to be affected. slow down.
In these cases, you may:
- Request that downloads or streaming be paused while you perform critical tasks.
- Configure the router quality of service (QoS) to prioritize certain devices or uses (for example, video calls).
- Consider upgrading to a higher speed if intensive use is constant.
Problems with browser cache
The browser cache stores data for speed up loading of pages you frequently visit. But if the cache is corrupted, outdated, or full, it can have the opposite effect: websites that load poorly, images in the wrong places, login errors, or abnormally long loading times.
Clear the browser cache On mobile, it's a simple task that usually improves overall browsing performance, although it doesn't change the actual line speed.
Malware and malicious applications
If your phone is infected with malware, some of your bandwidth may be being used for send data without your permissionDisplaying aggressive advertising or connecting to remote servers consumes resources and slows down both the system and browsing.
To avoid this:
- Install apps only from Google Play or reliable sources.
- Use a security tool trusted to analyze the device.
- Uninstall apps you don't recognize or don't remember installing.
Telephone too old or overloaded
Over time, apps and websites demand more resources. A mobile phone with old processorWith little RAM or nearly full storage, you'll have difficulty rendering modern web pages or running heavy apps, giving the impression of slow internet even if the connection is good.
If you notice that even with a good contracted speed your mobile takes a long time to open apps or load websites, perhaps it's time to consider renewing the deviceUninstall applications you don't use or clean up temporary files and old downloads.
By applying all these tips, both to Wi-Fi and mobile networks, and optimizing the settings and the Android device itself, it is possible to solve most problems. Slow internet on mobile without needing to immediately contact technical support. Only when, after all these checks, the connection is still significantly worse than expected, should you contact your service provider to have them check the line, the router, or even a possible hardware failure in your smartphone.