The situation when messages and likes on a social network stop arriving on time causes great irritation. This problem occurs especially often among smartphone users Samsung Galaxy. Aggressive system optimization One UI often mistakes the work of instant messengers as a background process that can be stopped to save battery.
In this article we will analyze in detail all possible technical reasons for the failure. You will learn how to configure the system so that applications work at full capacity, without falling under the influence of energy-saving algorithms. We will look at settings from Device Manager to Android system restrictions.
Restoring normal operation of push notifications requires an integrated approach. Sometimes simply switching the toggle switch is enough, but in difficult cases you will need to completely reset the network settings or reinstall the client. Let's start with the most obvious and common reasons.
Checking system notification settings
First of all, you need to make sure that notifications are not disabled at the level of the operating system itself. In modern versions of Android, settings are divided into global and individual for each application. If the global switch is turned off, no messages will reach the lock screen.
Go to the section Settings → Notifications and check the status of the sliders. Make sure that the option Show notifications is active. It's also worth checking if Do Not Disturb mode is enabled, which can hide icons from the status bar even when the application settings are running.
⚠️ Attention: Do Not Disturb mode on Samsung smartphones may have a schedule. Check whether this mode is configured to automatically turn on at night or on certain days of the week.
Next you need to go down one level and check the settings specifically for the VKontakte client. Follow the path Settings → Applications → VKontakte → Notifications. Here you will see a list of all types of notifications: private messages, comments, broadcasts.
Make sure the switch Allow notifications is in the active position. If it is turned off, turn it on immediately. Also make sure that the “Private Messages” option is set to sound and vibration, and not the “Silent” mode, which often confuses users.
Optimizing the battery and working in the background
The most common reason why VK notifications do not arrive on Android Samsung lies in the energy saving system. Algorithms One UI seek to extend battery life by forcibly putting applications to sleep that have not been actively used for a long time.
To prevent the system from limiting the operation of the social network, you need to change the battery mode. Open Settings → Device maintenance → Battery → Background restrictions. Find VKontakte in the list and make sure that it is not in the “Applications in sleep mode” group.
The best solution would be to move the application to the “Apps that never sleep” list. This ensures that the process remains active even when the screen is locked. Also in the menu Battery optimization select “All applications”, find VK and switch the status to Do not optimize.
If you have the “Energy Saving” or “Maximum Savings” mode enabled, notifications may not arrive at all. Disable these modes to check the stability of the network.
In addition to system settings, the VKontakte application itself has its own optimization parameters. Go to the application settings, “Notifications” section and make sure that the “Run in background” option is enabled. Without this permission, the server will not be able to send a push signal to your device.
Sometimes forcing the service to stop and restart helps. To do this, go to Settings → Applications → VKontakte, click Stop, and then open the application manually from the menu. This will restart all background processes and refresh the connection to the server.
☑️ Setting up energy saving for VK
Problems with network connection and DNS
An unstable Internet connection is the second most common culprit for the lack of alerts. Even if the browser opens sites, the Google push services (FCM) through which notifications arrive may be blocked by the ISP or have routing problems.
Try switching from Wi-Fi to mobile data (or vice versa). If you receive notifications on the mobile network, but not on Wi-Fi, the problem may be in the router settings or blocked ports. Try changing the DNS servers in your Wi-Fi settings to public ones from Google (8.8.8.8) or Cloudflare.
| Connection type | Possible problem | Solution |
|---|---|---|
| Wi-Fi | Blocking ports by router | Changing DNS, rebooting the router |
| mobile data | Weak 3G/4G signal | Switching to “LTE Only” mode |
| VPN / Proxy | Blocking Google servers | Disabling VPN for test |
| Roaming | Operator restrictions | Checking the data tariff |
It is also worth checking whether the “Traffic Saving” mode is enabled on your phone. This feature prevents applications from using the Internet in the background, which directly affects the delivery of push notifications. You can disable it in the section Settings → Connections → Data usage.
If you use third-party ad blocking applications (for example, AdGuard), they can filter push traffic. Try temporarily disabling filtering for domains vk.com and Google services to eliminate this factor.
Clearing the cache and resetting application settings
Accumulated errors in the application cache can lead to incorrect operation of the notification service. Over time, temporary files become damaged, and the application stops interacting correctly with Android system services.
To solve the problem, clear the cache. Go to Settings → Applications → VKontakte → Storage. Click the button Clear cache. It is important not to confuse this button with the “Clear data” option, since the latter will delete your profile and you will need to log in again.
If clearing the cache did not help, you can try more A radical method is to reset the application settings. In the same storage menu, click Clear data. The application will return to the “as after installation” state, but your account and correspondence will be saved on the server.
What to do if the clear button is inactive?
If the cache clear buttons are inactive (gray), the application may have device administrator rights or is a system one (which is unlikely for VK). Try deleting the application and installing it again from the official store.
After resetting the data, be sure to restart your smartphone. This will allow the system to re-index the application and register its tokens to receive notifications in the Google Play service.
In some cases, reinstalling the application helps. Uninstall the VKontakte client, restart your phone and download the latest version from Google Play or Galaxy Store. Make sure that you download the official application and not modified versions, which often have stability problems.
Version conflicts and software updates
An outdated version of the VKontakte application may not work correctly on new versions of Android. Developers regularly update communication protocols, and old clients simply do not understand new server commands.
Check for updates in the application store. If automatic updating is disabled, go to Google Play, find VKontakte and click the button Update. It is also worth checking for updates to the Google Play Services system component, since they are responsible for delivering push notifications.
The opposite situation: the new version of the application may contain bugs. If the problem appears immediately after the update, try rolling back to the previous version (by downloading the APK file from a reliable source) or wait for a patch from the developers.
⚠️ Attention: The One UI settings interface may change depending on the firmware version and smartphone model. If you don't find an item, use the settings search (magnifying glass icon at the top of the settings screen).
Also, do not forget to update the phone's operating system itself. Samsung regularly releases security patches and bug fixes that may affect the operation of network modules and background processes.
Regular updating of the Google application and system components is the best prevention of problems with notifications. Do not ignore application store requests for updates.
Specific settings of Samsung One UI
Shell One UI has a number of unique functions that may interfere with the operation of instant messengers. For example, the Auto Optimize feature may close applications that you have not opened for several days.
Check your Auto Optimize settings. Go to Settings → Device maintenance → Battery → Auto-optimization. Make sure that VKontakte is not subject to automatic cleaning of unused applications.
Another feature is the “Deep Sleep” mode. Applications placed in this list cannot run in the background at all. Check the list in the section Settings → Applications → Autorun and make sure that autorun is enabled for VK.
Some Samsung models have a “Protection against accidental clicks” function or a smart lock, which can dim the screen and turn off the network ahead of time. Try disabling gestures and additional blocking functions for the duration of the test.
Frequently asked questions (FAQ)
Why do notifications arrive with a delay of 10-20 minutes?
The delay is usually due to the fact that the system has put the application to sleep to save energy. When you unlock the screen or launch another application, the system “wakes up” VK and it downloads the accumulated messages. Solution: disable battery optimization for the application.
I uninstalled the application and installed it again, but the notifications still did not work. What to do?
Try logging out of your Google account on your phone and logging in again. Sometimes device registration tokens in the Google Play service get confused. Also check whether Internet access for the application is blocked in the firewall or antivirus settings.
Does the theme affect the operation of notifications?
Third-party themes or launchers can intercept control of the status bar and block the display of notification icons. Try temporarily returning the standard theme and Samsung launcher to see if the problem goes away.
Could the problem be on the side of the VKontakte servers?
Yes, this happens rarely, but it does happen. If your friends also do not receive notifications, it is possible that technical work is being carried out on the social network servers. Check the news in the official VK support community.
Resetting your phone settings will help solve the problem?
A hard reset will solve any software problem, but this is a last resort. Before doing this, be sure to back up all your data. Usually, resetting the network settings or reinstalling the application is enough.