The situation when the smartphone Samsung Galaxy A50 A sudden failure to connect to a wireless network can catch you off guard at the most inopportune moment. You'll see a never-ending process of obtaining an IP address or a message stating the password is incorrect, even though the device was previously working without issue. This is a common problem, most often caused not by hardware failure, but by a software conflict or a router configuration error.
Troubleshooting should begin with analyzing the system's behavior: whether the problem occurs only with one specific access point or whether the phone is unable to detect any network at all. Often, the culprit is an updated router security protocol or a faulty module. Wi-Fi Direct the smartphone itself. Understanding the nature of the error allows you to choose the correct course of action, avoiding unnecessary data resets.
In most cases, you can restore the connection yourself without contacting a service center. You should check the date settings, communication module operating modes, and DHCP parameters one by one. Below, we'll provide detailed instructions for troubleshooting the most common causes of connection failure. Android-devices from working in a local network.
Basic diagnostics and equipment testing
The first step is to rule out problems with the signal source itself. If other devices in the house also can't connect, the problem lies with the router, not the Samsung A50Try rebooting your router by unplugging it for 10-15 seconds. This will refresh the table. ARP and clear the cache of connected clients.
Make sure your phone isn't in airplane mode and the Wi-Fi switch is blue. Sometimes the system can get stuck in a searching state, and simply turning it off doesn't help. In this case, switching between mobile data and Wi-Fi works effectively: turn it on. 4G/LTE, wait a few seconds, then turn on the wireless network again.
Check the physical proximity to the router. Model Galaxy A50 The router is equipped with antennas that are sensitive to strong signal attenuation, especially in the 5 GHz band. If you're far away or there are load-bearing walls between you and the router, your phone may see the network but won't be able to authenticate due to packet loss.
It's also worth paying attention to the time and date. If the system's time settings are incorrect, security certificates will fail to verify, and connections to secure networks will be blocked (WPA2/WPA3) will be blocked. Set automatic time synchronization via the network.
Reset network settings on the Samsung A50
The most effective software solution is a full network reset. This won't delete your personal files, contacts, or apps, but it will reset the network configuration to factory defaults. You'll need to re-enter your Wi-Fi passwords and re-verify the pairing. Bluetooth-devices.
To perform this procedure, go to your phone's settings menu. Find the "General Settings" or "System" section, then select "Reset." Select "Reset Network Settings" from the list of options. The system will warn you of the consequences and then ask you to confirm the action.
☑️ Checklist before resetting the network
After rebooting, the phone will search for networks as a new device. This often resolves issues with frozen configurations. DNS or static IP addresses that conflicted with the router's current address pool. If the problem persisted due to a firmware bug, this step should resolve it.
⚠️ Please note: After resetting your network settings, your saved APNs for your carrier's mobile data may be deleted. If 4G stops working, you'll need to re-enter them or download the settings from your carrier's website.
IP and DNS issues
A common cause of a freeze at the "Obtaining IP Address" stage is an addressing conflict on the local network. The router may not be assigning an address to the device due to a table overflow. DHCP Or lease-time errors. In this case, manually entering a static IP address in the phone settings helps.
To do this, click on the desired network in the list of available ones, select "Advanced" or "Edit". In the "IP Settings" field, switch the value from DHCP on StaticYou will need to enter the gateway address (usually 192.168.0.1 or 1.1), the subnet mask, and the IP address itself, which must be different from the addresses of other devices.
It is also worth trying to register alternative DNS servers, for example, from Google (8.8.8.8) or Cloudflare (1.1.1.1). The provider's standard DNS may work unstable or block certain requests, which the phone perceives as a lack of connection.
How to enter a static IP correctly?
In the IP Address field, enter an address in the same subnet as the router, but with a unique ending (e.g., 192.168.1.155). The gateway is the router's address. The network prefix length is typically 24.
Using a static address is especially useful in networks with a large number of devices, where dynamic address allocation does not work correctly. This allows Samsung A50 bypass the DHCP server request queue.
Wi-Fi frequency and band conflicts
Modern routers often broadcast two networks: 2.4 GHz and 5 GHz Model Galaxy A50 It supports both bands, but may not switch correctly if they have the same name (SSID). The phone attempts to connect to the faster 5 GHz band, but due to a weak signal, it loses connection, and the phone does not automatically switch back to 2.4 GHz.
It is recommended to separate networks in the router settings by giving them different names, for example, HomeWiFi And HomeWiFi_5GThis will allow you to force your phone to use the desired frequency band. 2.4 GHz is best for distant rooms, while 5 GHz is best for downloading large files near the router.
Also check the channel width. If the router has a channel width set 40 MHz or 80 MHz In a noisy environment, connection stability may decrease. Try setting a fixed channel width or mode Auto.
| Parameter | 2.4 GHz band | 5 GHz band |
|---|---|---|
| Range of action | High (up to 50 m indoors) | Medium (up to 20 m indoors) |
| Penetration ability | Good (through walls) | Low (the walls are very damping) |
| Maximum speed | Up to 150-300 Mbps | Up to 800+ Mbps |
| Airtime congestion | High (many neighbors) | Low |
The Impact of Proxies and Security Certificates
If you previously used proxy servers or special apps to bypass blocking, their settings may have become stuck in your system. Even after uninstalling the app, an active proxy may remain in your Wi-Fi settings, blocking the connection. Check the proxy settings for each network: they should be set to No.
Corporate networks or networks of educational institutions often require the installation of a security certificate. Samsung A50 with the updated version Android The security policy requires that the certificate be installed on the system and have an expiration date. If the certificate expires, the phone will not connect.
Deleting old profiles and certificates may solve the problem. Go to Security Settings and find the "Other Security Settings" or "Certificates" section. Delete any user certificates you don't recognize or no longer need.
Sometimes forgetting the network and then reconnecting helps, when the system asks for the security type and encryption parameters again. This is especially true if the encryption type on the router has changed. TKIP on AES.
Hidden Router Settings and MAC Filtering
Router owners often enable the filtering function by MAC addresses to protect against prying eyes. If you've changed your phone or reset your router, your MAC address Samsung A50 may have been removed from the whitelist. Check the list of connected devices in the router interface.
Another reason could be incompatibility of encryption standards. If the router is configured to operate only in the WPA3, and the phone tries to connect using the old protocol, there will be no connection. Try setting it to mixed mode. WPA2/WPA3 in the router's wireless security settings.
⚠️ Note: Router interfaces from different manufacturers (TP-Link, ASUS, Keenetic) vary. Function names may vary, so please consult the official documentation for your router model when changing security settings.
It's also worth checking whether the "Guest Network" feature is enabled, restricting access to local resources, if you need access to a printer or NAS. For general use, it's best to connect to the main network.
Wi-Fi module hardware failure
If none of the software methods helped, the problem may be hardware related. In the model Samsung A50 The Wi-Fi module is integrated into the main board. Drops or impacts could cause the antenna contact to come loose or damage the chip itself.
Symptoms of hardware failure include: a complete absence of the network list (gray switch), the bottom of the phone becoming very hot when Wi-Fi is turned on, or constant connection drops even when only a meter away from the router. In such cases, a software reset is ineffective.
For diagnostics, you can launch the hidden engineering menu. Enter the code #0# in the phone app. Select the item Wi-Fi (if available in your firmware version) to check the module's operation. If the test fails or returns an error, a service visit is required.
Is it possible to repair the module myself?
Replacing the Wi-Fi module on a Samsung A50 requires resoldering components on the motherboard or replacing the entire board. This is a complex procedure requiring professional equipment and BGA soldering skills.
In some cases, reflashing the device helps if the firmware of the communication module is damaged, but this is an extreme measure that requires downloading the official firmware through the program Odin.
Why does my phone keep saying "Obtaining IP address"?
This means the phone has connected to the router, but the router isn't responding to the address request. Possible causes include: the DHCP address pool is full, a router failure, MAC address filtering is enabled, or an IP address conflict exists on the network.
Can a case interfere with Wi-Fi on the Samsung A50?
Yes, if the case has a metal plate for mounting in the car or is made of materials containing metal. Metal shields the signal from the antennas located at the top and bottom of the case, dramatically reducing reception.
Will resetting network settings delete my photos?
No, reset network settings (Network settings reset) only affects connection settings: Wi-Fi passwords, Bluetooth settings, and mobile network settings. Personal files, contacts, and apps will remain intact.
What should I do if Wi-Fi turns on and then immediately turns off?
This is a sign of a serious driver conflict or hardware issue. Try booting your phone in Safe Mode. If the problem persists, you'll likely need to replace the Wi-Fi module or reflash the device.
How do I know what frequency my Wi-Fi is on?
Tap the Wi-Fi icon in the notification shade or go to connection settings. You may see "5G" or "5GHz" next to the network name. You can also use Wi-Fi analyzer apps, which will show the channel frequency (2412 MHz is 2.4 GHz, 5180 MHz is 5 GHz).