Authentication Error Occurred on Oppo A18? Here Are 10 Proven Fixes

There are times when users get an authentication error while they connect to a Wifi network. The problem is mostly found in Android whenever a device tries to establish a connection to Wifi. If your device is also experiencing an authentication problem Wifi, then don’t worry. It can easily be resolved. In this post, we will make you familiar with the root cause for the Oppo A18 Wifi problem and how you can resolve whenever authentication error occurred on your device.

Part 1: Any idea about the Wi-Fi authentication problem?

Wi-Fi authentication has to be done every time you wish to connect to a Wi-Fi network over your smartphone or laptop. To authenticate yourself and connect to the protected Wi-Fi network, you need to have the password of it. But if after you’re putting in the correct password and still experiencing the wifi authentication problem. Here’s what you need to know.

Authentication error occurs when the “deal” between the Wi-Fi router and device fails due to certain reasons. First, the Oppo A18 device sends the password of the network and the “connect” request in an encrypted format to the Wi-Fi router. Then, the router decrypts the password and compares the password saved on it. Now, if the password matches, it sends affirmation for the “connect” request, and then the Oppo A18 device is allowed to connect to the network.

Part 2: Why Authentication Error Occurred when Connecting to Wifi?

There could be plenty of reasons for facing an authentication error on your device. Most of the time, it occurs whenever a Wifi router seems to malfunction. Furthermore, if your phone has been recently updated, then chances are that there could be an issue with its drivers. A security attack can also make your device malfunction as well. An unstable connection or a router blockage can also be a reason for this issue.

In this scenario, whenever you try to connect to a Wifi network (even after supplying the correct password and username), it doesn’t connect to it. Instead, it displays an authentication error occurred promptly. Thankfully, there are plenty of ways to overcome the authentication problem Wifi. In the next section, we have provided three different solutions to fix the Oppo A18 Wifi problem (as it mostly happens on Android devices).

Part 3: 10 Solutions to Fix Wifi Authentication Error

Before we make you familiar with different fixes for the Wifi authentication error, it is important to check your router beforehand. Chances are that you could be getting the authentication error because your router is not functioning properly. You can restart it and try to connect any other device to it as well to check it. After making sure that there is no problem with your network or router, follow these suggestions to overcome the authentication error occurred issue.

Check if extra characters added in Wi-Fi password

Ensure that no other extra characters are being added in the Wi-Fi password while you’re entering it. Key in the password carefully while viewing the characters, and then check if the authentication error occurs or not.

One-Click to Fix Wifi Authentication Error by Android System Repair

Android system repair is considered the most effective way to fix Wifi Authentication Error. As the bottom-layer Android system files may be corrupted unconsciously with days of phone use, the Wifi Authentication Error may be one of the symptoms.

So Android repair requires programming knowledge to do it?

No! With Dr.Fone - System Repair (Android), you can do Android repair in just a few steps and get all issues like Wifi Authentication error fixed easily.

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An easy-to-operate tool to fix Android system issues like a Wifi authentication error

• Fixes all Android system issues like a black screen of death, Wifi authentication error, etc.
• One-click to fix the Wifi authentication error. No technical skills required.
• Supports all the new Oppo A18 devices like Galaxy S8, S9, etc.
• Easy-to-follow instructions provided on each of the screens.

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Here are the steps to fix Wifi Authentication Error by Android system repair:

Note: Android repair is effective to permanently fix Wifi Authentication Error, but may wipe out the existing phone data. Backup all the important Android data to PC before you go on.

1. After the Dr.Fone tool is downloaded, install, and launch it. You can see the following screen.

1. Connect your Oppo A18 to the computer, and select “Android Repair” in the middle.

1. Select all the details that match your device, and click “Next”.

1. Next up, you should boot your Oppo A18 in download mode by following the on-screen instructions.

1. Allow the program to download the corresponding firmware. After that, the Android repair will start and get the Wifi Authentication Error fixed in minutes.

Use static IP address instead of DHCP

DHCP, or Dynamic Host Configuration Protocol is the default IP address assignment for the Wi-Fi settings on many devices. Whereas DHCP can cause IP address conflict during the dynamic IP address assignment. So, you’d better change “DHCP” to “Static” to see if the authentication error persists.

Step 1: Head to the “Settings” of your Oppo A18 and then opt for “Wireless and Networks” followed by “WLAN/WiFi”.

Step 2: Now, hit on the WiFi network that is showing “authentication error occurred”.

Step 3: Depending on your Oppo A18 model, look for “IP Settings” and tap on it. Now, switch the “DHCP” to “Static”.

Step 4: Note down the static IP address fields and wipe off all the fields. Punch it in again and then save it.

Check carefully for duplicate Wi-Fi names before you connect

Perhaps, you might connect to a WiFi with a similar name. There are good chances that some users do not modify their WiFi network name and possibly, your neighbor may have the same WiFi network, service provider. Therefore, ensure you connect to the correct WiFi network.

Reset the Wifi network

One of the easiest ways to fix the authentication problem of Wifi is to reset the network. To do this, you would be required to forget the respective network first and then connect to it again. This can be done by simply following these steps.

1. Firstly, you need to forget a Wifi network. To do it, go to your phone’s Settings > WiFi and network. From here, you can see a list of all the Wifi hotspots that your phone connects to. Select the network you wish to forget.

2. When you would select a network, it will provide the basic information related to it. Just tap on the “Forget” button and agree to the pop-up message. This will erase the network’s information from your device.

3. Afterward, turn on your Wifi again and tap to the network you wish to connect to. Simply provide the credentials and tap on the “Connect” button to reestablish the connection. This way, you can reset the network successfully.

Modify network connection

If the above solution won’t work, then you would be required to walk the extra mile to fix the Oppo A18 Wifi problem. After you reset a network connection, if still getting issues regarding the authentication of the network, you need to modify the connection. In this technique, you will be changing the IP settings on your phone to alter the way it establishes a secure connection. You can do it by following these steps.

1. To start with, visit your phone’s Settings and open the Wifi page.

2. This will display a list of all the Wifi networks that are associated with your device. Just long-tap on the Wifi network that you wish to modify. It will open another pop-up window. From here, tap on the option of “Manage network settings”. Sometimes, users also get an option of “Modify network settings” here as well. Simply select it to proceed.

3. It will display basic information related to your Wifi network. Just tap on the “Show advanced options” button to access more options related to the network setting.

4. From the IP Settings menu, change the field from DHCP to Static. This will let you establish a static connection between your device and the router.

5. As soon as you will change it to static, you will get different fields related to your network’s IP address, gateway, DNS, and more. Simply fill these fields and tap on the “Save” button once you are done.

Now, try to connect to the Wifi hotspot again. You would be able to overcome the authentication problem of Wifi.

Change Network Security Type

It has been observed that, when we connect to Wifi, our device chooses a wrong security type. This clashes with the default security protocol of the router and authentication error occurred due to this. If your device is facing the same issue, then it can be fixed by simply changing its security type. To do this, follow these instructions:

1. To change the security type of a network, you need to “Add the network”. If you already have the Wifi network saved, then simply forget the network by following the above-mentioned tutorial.

2. Now, turn on your device’s Wifi and tap on the option of “Add network”. Here, you would be asked to give a network name and select the security type. To manually select it, tap on the “Security” option.

3. From here, you will get a list of various security protocols that you can pick. Select “WPA/WPA2-PSK” and save your selection.

Now, try to connect to the network again. Most likely, it will let you fix the authentication error on your device.

Update Android firmware to the latest

There are instances where an outdated OS version of your Oppo A18 may create a hindrance in establishing a connection between your device and the WiFi network. You need to update your Android firmware to the latest version and then check if the problem persists or not.

Step 1: Launch “Settings” of your Oppo A18 and then get into the “About Phone” option.

Step 2: Now, opt for the “System Update” option. If the update is available, get your device updated to the latest OS version.

Restart the router and reset Android network settings

Sometimes, the WiFi router may hang up while establishing a connection and therefore, the wifi authentication problem occurs. Try restarting your Wi-Fi router and then check if your device connects successfully. If this doesn’t work, try to reset your Android Network Settings .

Bonus tip: Turn Airplane mode on/off

By simply turning on the Airplane mode (and later turning it off), you can easily fix the authentication problem Wifi most of the time. You can find a toggle button for Airplane mode on the notification bar of your phone. If you can’t find it there, then go to your phone’s Settings > Connection > More Networks and turn on the feature of “Airplane Mode”.

Let it do for a while. Afterward, turn it off and try to connect to the Wifi network again.

After following these quick and easy suggestions, you would be able to fix the Oppo A18 Wifi problem for sure. Even if you use any other Android device, then its authentication error can easily be resolved after these effective solutions. Go ahead and give these expert solutions a try and let us know about your experience as well. If you have any other solution to fix the authentication problem Wifi, then share it with us as well in the comments.

Strategies for Apps That Won’t Download From Play Store On Oppo A18

The frustration of apps not downloading in the Google Play Store can annoy users. A seamless download experience is crucial for user satisfaction and app success. When you encounter such issues, they disrupt the interaction expected from your device.

The inconvenience can impact user trust and the overall perception of an app’s reliability. Addressing these challenges is crucial to maintaining a satisfied user experience and ensuring the success of apps on the platform. Explore the article below to learn what to do when apps not downloading from the Play Store issue appears.

Part I. 7 Usual Reasons Behind Apps Not Downloading in Google Play Store

The reasons below collectively contribute to the frustration users experience when apps are unable to download from the Play Store:

Connectivity Issues

Slow or unstable internet connections can interfere with the download process. It often leads to failed or delayed app installations. You will experience frustration when faced with connectivity issues, impacting your ability to access desired apps.

Insufficient Storage

Limited available storage on the Oppo A18 device prevents the installation of new apps. Users may find it challenging to manage their storage effectively. It can hinder the expansion of your app library and impact the overall device functionality.

Outdated Play Store Version

Running an outdated version of the Play Store can cause compatibility issues with the newest versions of apps. You’ll miss out on new features and improvements, affecting the overall user experience and the efficiency of the Play Store.

Google Account Authentication Problems

Issues with verifying Google accounts can restrict access to the Play Store. It prevents you from downloading or updating apps. Authentication problems pose a significant barrier, impacting your ability to stay current with app versions.

App Download Restrictions

Device settings or parental controls may impose restrictions on certain app downloads. You may encounter limitations in accessing specific apps. It can affect the Oppo A18 device’s versatility.

Incorrect Date and Time Settings

Inaccurate date and time settings on the Oppo A18 device can disrupt the Play Store’s functionality. You’ll face obstacles in downloading apps due to authentication errors or syncing issues. It can have a negative impact on the overall user experience.

Play Store Bugs and Glitches

Technical issues within the Play Store, such as bugs or glitches, can lead to failed downloads. You may encounter unexpected errors, causing uncertainty and potential distrust in the reliability of the app platform.

If you encounter any of these issues, having a reliable tool to fix them is essential. Wondershare Dr.Fone - System Repair offers a solution if you cannot download from the Play Store. The platform ensures you can download apps again with a high success rate in minutes.

Part II. Having a Third-Party Tool Is Essential To Safeguard Your Apps

Dr.Fone - System Repair is a dependable alternative offering a comprehensive solution to various Android-related problems. Its key features set it apart, making it an essential asset for users facing app download challenges.

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Key Features

The summarized points show why Dr.Fone is a flexible and powerful tool for Android users with various phone models.

Supports up to 1000+ Android Models

Dr.Fone System Repair boasts compatibility with a vast range of Android models. It provides a universal solution for users regardless of their device. The extensive support ensures that users with diverse Android devices can rely on the tool for effective issue resolution.

Fixes All Kinds of Android Problems in Minutes

The tool is designed to address a wide array of Android problems. Whether it’s connectivity issues, authentication problems, or glitches within the Play Store, Dr.Fone - System Repair solves these issues within minutes. Its efficiency in tackling diverse problems makes it a valuable asset for users seeking a quick and reliable solution.

High Success Rate Without Data Loss

One of the standout features of Dr.Fone - System Repair is its high success rate in problem resolution without causing data loss. You can have confidence that your apps and important data remain intact throughout the repair process. It ensures a smooth solution and maintains the integrity of the user’s device and data.

When grappling with persistent issues hindering app downloads on the Google Play Store, having a reliable third-party tool becomes essential to safeguard your apps and ensure a seamless user experience. The next section will show you how to use the platform to fix the apps not downloading in the Google Play Store problem.

Part III. First Choice: Use Dr.Fone - System Repair for App Downloading Issues

Using Dr.Fone - System Repair to resolve app downloading issues is straightforward. Here are three simple steps to effectively address app-related challenges:

**Note:**It is highly recommended that you back up your Android data before using Dr.Fone for Android repair.

• Step 1: Download and install Dr.Fone - System Repair on your computer. Launch the program and select System Repair from the available options.

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• Step 2: Connect your Oppo A18 to the computer using a USB cable. Dr.Fone will detect your device, and you’ll be prompted to choose your device’s type. Select Android Repair.

• Step 3: Follow the on-screen instructions until the app downloads the correct firmware for your device. As it downloads, Dr.Fone will verify it and put your device details on display. You can install the firmware on your Oppo A18 by choosing Fix Now.

• Step 4: Initiating the system repair process will be accompanied by a progress bar visible on the screen. Upon completion, a prompt window will emerge, presenting a completion message.

• If you can download apps successfully, click Doneto close the tool.

• If the problem persists, select TryAgain to rerun the process.

If you can’t download Dr.Fone for some reason, you can try these common fixes to try to resolve your app download issues on your device

Part IV. 8 Other Methods of Resolving Common App Downloading Issues

Here are 8 other methods to troubleshoot and resolve common app downloading problems:

Check Internet Connection

A stable internet connection is essential for downloading apps. Do an Internet signal check to ensure you are connected to a reliable Wi-Fi network or have a strong mobile data signal. If the connection is weak, consider switching to a more robust network.

Free Up Storage Space

Insufficient storage on your device can hinder app installations. Navigate to the Oppo A18 device settings, access the Storage section, and clear unnecessary files or apps. Creating more space ensures a smoother download experience.

Update the Play Store

An outdated Play Store version may lead to compatibility issues. Open the Google Play Store, go to Settings, and tap the Play Store version. If an update is available, install it to ensure compatibility with the latest apps.

Clear Play Store Cache and Data

Cached data in the Play Store can sometimes cause download problems. Head to the Oppo A18 device settings and open Apps or Application Manager. Locate Google Play Store, and tap Storage. Clear both the cache and data to refresh the app.

Verify Google Account

Authentication issues with your Google account can prevent app downloads. Confirm that your Google account is properly verified. Go to the Oppo A18 device settings, select Accounts, and ensure your Google account is active and synced.

Check Date and Time Settings

Incorrect date and time settings may disrupt the authentication process. Verify that your device’s date and time are set correctly. Enable automatic date and time settings to ensure accuracy.

Review Download Restrictions

Device settings or parental controls might impose restrictions on certain app downloads. Examine the download restrictions in the Oppo A18 device settings and adjust them accordingly to allow for the installation of desired apps.

Restart the Oppo A18 device

Sometimes, a simple restart can resolve various issues. Power off your device, wait a few seconds and then power it back on. This can help refresh system processes and eliminate temporary glitches.

Conclusion

Ensuring a smooth app download experience demands attention to various factors. From connectivity to storage management, each step contributes to resolving download challenges. The careful review of date/time settings and download restrictions further enhances the process when you cannot download from the Play Store.

For persistent issues, consider Dr.Fone - System Repair. The app is a viable option, providing a comprehensive approach. Embracing these measures ensures you can easily fix apps that won’t download from the Play Store. Having a reliable tool beside you also fosters an uninterrupted and enjoyable downloading journey from the Play Store.

How To Unbrick a Dead Oppo A18

Discovering your phone died, especially among Oppo A18 models, can be disheartening. Looking online for ways to unbrick your Oneplus 8T can take up so much of your time. The unavailability of your device can disrupt your routine and connectivity. However, unbricking is the crucial solution to regain the functionality of your Oppo A18 device.

This guide teaches effective methods to unbrick your Oppo A18. The page will also discuss the early warning signs and healthy habits to prolong your Oppo A18. Read below to learn more.

Part 1. Early Warning Signs of a Hard-bricked One Plus Device

When a phone “bricks,” the Oppo A18 device becomes completely unusable and non-functional. It essentially turns into a “brick.” A bricked Oppo A18 device can be preceded by certain warning signs that you should be attentive to. Here are some of them below.

• **Corrupted Device and Boot Failures.**If your Oppo A18 freezes or fails to boot up properly, it can indicate underlying software issues that might lead to bricking.
• **Inability to Enter Fastboot Mode.**If you find it increasingly challenging to access the fastboot mode, it could signify impending trouble.
• **Consistent Black Screens.**Experiencing recurring black screens could indicate problems within the operating system. In the long run, this might escalate to bricking.
• **Unexpected Reboots and Crashes.**Frequent and unprovoked reboots, app crashes, and system instability might point toward software inconsistencies. Similar to consistent black screens, this could eventually lead to bricking.

Common Reasons for Your Oppo A18 Phone To Be Bricked

Understanding the factors that can trigger bricking in Oppo A18 devices is essential for preventing such scenarios.

Failed Updates or Interrupted Installations

When a firmware update is interrupted due to power loss, sudden device shutdown, or other disruptions, it can result in incomplete software installation and potential bricking.

Unauthorized User Modifications

Engaging in root access, flashing custom ROMs, or applying unsupported system modifications can destabilize the Oppo A18 device’s software, paving the way for bricking.

Incorrect Bootloader Unlocking

Mishandling the process of unlocking the bootloader, a crucial step for customization can lead to system inconsistencies and eventual bricking.

Compatibility Issues With Custom Software

Installing unofficial custom software, such as custom recoveries or third-party kernels, might not be compatible with the Oppo A18 device’s hardware or official software. That can cause conflicts that can lead to bricking.

Malware or Virus Infiltration

The presence of malicious software can cause significant disruptions to the Oppo A18 device’s functioning. It can lead to bricking if left unchecked.

Part 2. How To Unbrick One Plus Device Using Various Methods

The solutions below to unbrick your Oneplus are helpful methods to revive your device. Here’s an overview of these methods.

Method 1. Restore With Recovery Mode

Restoring using Recovery Mode can solve most problems that cannot be solved with a normal phone restart. Here’s how.

• Step 1: Turn off your Oppo A18 device. Press and hold the Power button and Volume Down until the Oppo A18 logo is displayed.

• Step 2: Move through the menu using the Volume Up and Volume Down buttons until you reach Recovery Mode. Press the Power button to choose it.
• Step 3: Select the Wipe data/factory reset option. Choose Yes to proceed and wait for the process to finish. Choose Reboot system now to see the results.

Method 2. Contact the Manufacturer

Engaging Oppo A18’s official support can provide insights and potential solutions. This is advantageous if your device is under warranty.

Method 3. Professional Repair Shops

Certified repair shops have the expertise to diagnose and address bricking issues, offering tailored solutions.

Method 4. Software Tools

Leveraging specialized software tools like Wondershare Dr.Fone - System Repair (Android) simplifies the process, even for non-technical users.

Part 3. Healthy Habits To Consider To Prolong Your One Plus

Maintaining the longevity of your Oppo A18 device requires adopting proactive habits. Here are vital tips to consider.

• **Regular Software Updates.**Keep your Oppo A18 up to date with the latest firmware releases. These updates often include security patches, bug fixes, and feature enhancements contributing to overall device stability.
• **Battery Care.**Avoid frequent deep discharges and overcharging. Use original charging accessories and refrain from exposing the Oppo A18 device to extreme temperatures.
• **App Management.**Review and uninstall apps you no longer use. This reduces clutter and conserves system resources, promoting smoother device operation.
• **Cache and Storage Cleanup.**Clear app caches and delete unnecessary files from your device. It optimizes storage space and prevents sluggishness caused by excessive data accumulation.
• **Screen Protection.**Apply a screen protector and sturdy phone case to shield your device from scratches, cracks, and impacts. This safeguards the physical integrity of your Oppo A18.
• **Safe Charging Practices.**Avoid using your device while charging, as this generates excess heat. Also, refrain from using non-certified chargers, which can harm the battery and device components.
• **Avoid Overloading the Oppo A18 device.**Limit multitasking and avoid running too many apps simultaneously. This minimizes strain on the Oppo A18 device’s RAM and processor, ensuring smoother performance.
• **Privacy and Security.**Implement robust, unique passwords and enable biometric authentication methods. Regularly review app permissions to enhance data privacy.

Tips: Unlock Your One Plus 6, 8T, or 10 Pro With Dr.Fone - Screen Unlock (Android)

Dr.Fone - Screen Unlock (Android) is powerful software designed to unlock Oppo A18 devices quickly. This tool is compatible with various Oppo A18 models, including the Oppo A18 6, Oppo A18, and Oppo A18 10 Pro, ensuring a wide support reach.

Dr.Fone - Screen Unlock (Android)

Unlock Oppo A18 Without Password

• Unlock your Oppo A18 quickly and securely
• Easily remove passwords and screen locks of all types
• Enjoy a streamlined experience with no technical background required
• Feel confident with solutions backed by a high success rate

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How To Unlock Your One Plus With Dr.Fone - Screen Unlock (Android)

Below is a guide on unbricking the Oppo A18 models using Dr.Fone - Screen Unlock (Android).

Step 1: Access Screen Unlock > Android

Navigate to the Screen Unlock section and select Android. Proceed by clicking on the Unlock Android Screen option.

Step 2: Choose Your Device Brand and Initiate Data Wipe

Identify your device brand for unlocking the screen. After selecting your device brand, you will be prompted to enter a specific mode. Once in this mode, Dr.Fone will commence the Android screen unlock process.

Step 3: Successful Screen Unlock

Allow the unlock process to run its course. If unsuccessful, click ‘Try Again’ for a second attempt. Upon successful screen unlock, click ‘Done’.

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How to Fix It If Your Oppo A18 Phone Got Bricked?

How to Fix the Soft Bricked Android Phone?

Conclusion

For Oppo A18 owners, your device’s revival rests in your hands. By embracing the abovementioned methods, you can reclaim your device from its bricked state. Act decisively to unbrick your Oppo A18 device and relish its seamless performance again.

For those who find themselves locked out of their Oppo A18 devices, there’s a reliable solution at your fingertips. Try Dr.Fone - Screen Unlock (Android) to regain access to your device swiftly and securely.

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