通常，设备将自身连接到 Wi-Fi 网络，只要该网络可用，如果密码已提前保存并选中自动连接选项。您可能已经观察到，当您单击设备上的 Wi-Fi 图标时，会自动建立 Wi-Fi网络连接(network connection)。但是，在某些情况下，当您尝试连接到之前使用过的 Wi-Fi 网络时，可能会出现Android Wi-Fi 身份验证错误。(Android Wi-Fi authentication)即使用户名和密码(username and password)保持不变，一些用户仍然会遇到此问题。因此，请继续阅读以了解如何修复Android上(Android)的 Wi-Fi 身份验证(Wi-Fi authentication)错误。
如何修复 Android Wi-Fi 身份验证错误(How to Fix Android Wi-Fi Authentication Error)
这可能有几个原因，例如：
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Wi-Fi 信号强度(Wi-Fi Signal Strength)- 如果信号强度低，则更频繁地发生身份验证错误。(authentication error)在这种情况下，建议用户确保信号连接正常，并在重启设备后重试。
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启用飞行模式(Enabled Airplane Mode)——如果用户不小心打开了他们设备上的飞行模式(Airplane mode)，它就无法再连接到网络。
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最近的更新(Recent Updates)– 一些系统和固件更新(system and firmware updates)也可能导致此类错误。在这种情况下，系统会提示您重新输入用户名和密码(username and password)。
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路由器故障(Malfunctioning Router )– 当路由器功能(router function)出现故障时，也会导致Wi-Fi连接问题。
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超出用户计数限制(User Count Limit Exceeded)- 如果超出 Wi-Fi 连接的用户计数限制(user count limit)，可能会导致身份验证错误消息(authentication error message)。要解决此问题，请断开当前未使用的设备与Wi-Fi 网络的连接。(Wi-Fi network)如果这不可行，请联系您的互联网服务提供商(internet service provider)以选择不同的套餐。
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IP 配置冲突 –(IP Configuration Conflicts – )有时，由于IP 配置(IP configuration)冲突，会发生Wi-Fi身份验证错误(authentication error)。在这种情况下，更改网络设置会有所帮助。
注意：(Note:)由于智能手机没有相同的设置(Settings)选项，并且它们因制造商而异，因此(manufacturer hence)在更改任何设置之前，请确保设置正确。
方法一：重新连接 Wi-Fi(Method 1: Reconnect Wi-Fi)
这是发生Android Wi-Fi 认证(Android Wi-Fi authentication)错误时最常用的方法。这就像重置 Wi-Fi连接，即(connection i.e). 禁用它，然后再次启用它。
1. 向下滑动主屏幕(Homescreen)以打开通知面板(Notification Panel)并长按Wi-Fi 图标。(Wi-Fi icon.)
注意：(Note:)或者，您可以转到设置(Settings)>连接(Connections )>网络(Networks)。
2. 点击导致错误的网络。(Network)您可以忘记网络，(Forget network, )或更改密码。(Change password.)
3. 点击忘记网络。(Forget network.)
4. 现在，点击刷新(Refresh)。您将获得所有可用网络的列表。
5. 再次点击网络(Network)。使用网络名称和密码(network name & password)重新连接到 Wi-Fi 。
Android Wi-Fi 身份验证(Android Wi-Fi authentication) 错误(error shouldn)现在不应出现。如果没有，请尝试下一个修复。
方法2：禁用飞行模式
(Method 2: Disable Airplane Mode
)
如前所述，启用此功能将不再允许您的Android 手机(Android phone)连接到任何网络，从而导致身份验证错误(authentication error)。因此(Hence)，明智的做法是确保它没有打开，如下所示：
1. 向下滑动主屏幕(Homescreen)以打开通知面板。(Notification Panel.)
2.在这里，如果已启用，请点击关闭飞行模式。( Airplane mode)
3. 然后，启用 Wi-Fi(enable Wi-Fi)并连接到所需的网络。
方法 3：从 DHCP 切换到静态网络(Method 3: Switch From DHCP to Static Network)
有时，由于IP 配置(IP configuration)冲突，会出现Android Wi-Fi 身份验证错误。(Android Wi-Fi authentication)在这种情况下，将网络设置从DHCP更改为静态(Static)可能会有所帮助。您可以在此处阅读有关静态 IP 地址与动态 IP 地址的信息(Static vs Dynamic IP Addresses here)。因此，以下是在您的Android 智能手机(Android smartphone)上修复身份验证错误(authentication error)Wi-Fi的方法：
1. 打开Wi-Fi 设置(Wi-Fi Settings)，如方法 1(Method 1)所示。
2. 现在，点击导致Wi-Fi 网络(Network)的问题。
3. 然后，点击管理网络(Manage network )选项。
4. 默认情况下，IP 设置(IP settings)为DHCP模式。点击它并将其更改为Static。然后，输入您设备的IP 地址(IP address)。
5. 最后，点击修改网络(Modify network)以保存这些更改。
注意：(Note:)或者，转到Advanced > IP 设置(IP Settings)并进行所需的更改。
修改Wi-Fi 网络(Wi-Fi network)将帮助您修复Android Wi-Fi 身份验证(Android Wi-Fi authentication)错误。修改过程(modification process)完成后尝试重新启动设备，稍后再次连接。
另请阅读：(Also Read:) 修复(Fix Internet May)Android上的Internet 可能不可用错误(Error)
Method 4: Restart/Reset Router
如果上述两种方法都无法修复您的Android 设备中的(Android device)身份验证错误(authentication error)，则可能是路由器存在问题。使用路由器进行Wi-Fi时，请始终确保信号强度良好。此外，路由器和连接到它的设备之间的连接应该是正确的。对此类身份验证错误(authentication error)进行排序的最佳方法之一是重新启动路由器以修复与之相关的任何问题。
1. 按电源按钮(Power Button)或断开电源线( Power Cable)关闭路由器。
2. 然后，几秒钟后，打开(turn on )路由器。
3. 现在连接到您的Wi-Fi 网络(Wi-Fi network)。现在应该修复由于路由器连接问题导致的 Wi-Fi身份验证错误。(authentication error)
注意：(Note:)如果您仍然遇到连接问题，请按 RESET/RST button，然后使用默认登录(default login)凭据进行连接。
方法 5：重置网络设置(Method 5: Reset Network Settings)
如果Android Wi-Fi 身份验证(Android Wi-Fi authentication)错误仍未修复，则可能存在与软件相关的问题。这可能是由于您的Android 设备(Android device)上安装了未知/未经验证的应用程序而发生的。重置网络设置将帮助您解决此问题。
1. 点击主屏幕中的应用(Homescreen)程序抽屉(App Drawer)并打开设置(Settings)。
2. 搜索备份和重置(Backup & Reset )并点击它。
3. 点击重置(Reset)部分下的重置网络设置(Reset network settings)。选择此项会将网络设置（例如Wi-Fi 和数据网络(Wi-Fi and data network)）恢复为默认设置。
4. 点击重置设置，(Reset settings, )在下一个屏幕上突出显示。
5.等待(Wait)一段时间以完成该过程。然后，重新连接到它。
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本文中讨论的方法已被证明可以成功修复 Android Wi-Fi 身份验证错误(fix Android Wi-Fi authentication error)。如果您仍然无法连接到所需的网络，那么您可能遇到了与硬件相关的问题。您需要联系专业人士来解决这个问题。让我们知道哪种方法适合您。如果您有任何疑问，请随时将它们放在评论部分。
Fix Android Wi-Fi Authentication Error
Usually, a device connects itsеlf to a Wi-Fi network, as soon аs such network becomes available, if the password was saved earlier & connect automatіcally оptіon was checked. You may have observed that when you click on the Wi-Fi icon on your device, a Wi-Fi network conneсtion is established automaticаlly. But, In some cases, an Android Wi-Fi authentication error may occur when you trу to connect to a Wi-Fi network thаt had been used previously. Even when the usernаme and password remain unchanged, some users still experience this issue. So, сontinue reading to learn how to fix Wi-Fi authentication error on Android.
How to Fix Android Wi-Fi Authentication Error
There may be several reasons for this, such as:
-
Wi-Fi Signal Strength – If the signal strength is low, authentication error occurs more often. In this case, the users are advised to ensure proper signal connectivity and try again, after rebooting the device.
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Enabled Airplane Mode – If the user accidentally turns on the Airplane mode on their device, it can no longer connect to a network.
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Recent Updates – Some system and firmware updates may also cause such errors. In such a case, a prompt will ask you to re-enter your username and password.
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Malfunctioning Router – When the router function fails, it also leads to connectivity issues with Wi-Fi.
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User Count Limit Exceeded– If the user count limit for a Wi-Fi connection is exceeded, it may cause an authentication error message. To resolve this issue, disconnect those devices from the Wi-Fi network which are currently not in use. If that is not feasible, then contact your internet service provider to opt for a different package.
-
IP Configuration Conflicts – Sometimes, Wi-Fi authentication error occurs due to IP configuration conflicts. In this case, altering the network settings will help.
Note: Since smartphones don’t have the same Settings options, and they vary from manufacturer to manufacturer hence, ensure the correct settings before changing any.
Method 1: Reconnect Wi-Fi
This is the most commonly used method when Android Wi-Fi authentication error occurs. It is like resetting the Wi-Fi connection i.e. disabling it, and enabling it again.
1. Swipe down the Homescreen to open Notification Panel and long-press the Wi-Fi icon.
Note: Alternatively, you can go to Settings > Connections > Networks.
2. Tap on the Network that is causing the error. Either you can Forget network, or Change password.
3. Tap on Forget network.
4. Now, tap on Refresh. You will get a list of all available networks.
5. Tap on the Network again. Re-connect to Wi-Fi using network name & password.
Android Wi-Fi authentication error shouldn’t appear now. If not, try the next fix.
Method 2: Disable Airplane Mode
As mentioned earlier, enabling this feature will no longer allow your Android phone to connect to any network thereby, causing authentication error. Hence, it would be wise to ensure that it is not turned on, as follows:
1. Swipe down the Homescreen to open Notification Panel.
2. Here, turn off Airplane mode by tapping on it, if it is enabled.
3. Then, enable Wi-Fi and connect to the desired network.
Method 3: Switch From DHCP to Static Network
Sometimes, Android Wi-Fi authentication error occurs due to IP configuration conflicts. In this case, altering the network settings from DHCP to Static could help. You can read about Static vs Dynamic IP Addresses here. Hence, here’s how to fix authentication error Wi-Fi on your Android smartphone:
1. Open Wi-Fi Settings as shown in Method 1.
2. Now, tap on the problem causing Wi-Fi Network.
3. Then, tap on Manage network option.
4. By default, IP settings will be in DHCP mode. Tap on it and change it to Static. Then, enter the IP address of your device.
5. Finally, tap on Modify network to save these changes.
Note: Alternately, go to Advanced > IP Settings and make the desired changes.
Modifying the Wi-Fi network will help you fix Android Wi-Fi authentication error. Try restarting the device once the modification process is complete, and connect again later.
Also Read: Fix Internet May not be Available Error on Android
Method 4: Restart/Reset Router
If the above two methods fail to fix authentication error in your Android device, there might be an issue with the router. When using a router for Wi-Fi, always ensure the signal strength is good. Also, the connection between the router & the devices connected to it should be proper. One of the best ways to sort such authentication errors is to restart the router to fix any problems associated with it.
1. Turn off your router by pressing the Power Button or by disconnecting the Power Cable.
2. Then, after a few seconds, turn on the router.
3. Now connect to your Wi-Fi network. The Wi-Fi authentication error due to router connectivity issues should be fixed now.
Note: If you still face issues connecting to it, press the RESET/RST button, and thereafter, connect with default login credentials.
Method 5: Reset Network Settings
If Android Wi-Fi authentication error is still not fixed, then there might be a software-related issue. This can happen due to the installation of unknown/unverified apps on your Android device. Resetting the network settings will help you fix this problem.
1. Tap on App Drawer in Homescreen and open Settings.
2. Search for Backup & Reset and tap on it.
3. Tap on Reset network settings under Reset section. Selecting this will restore network settings, such as Wi-Fi and data network, to default settings.
4. Tap Reset settings, as highlighted on the next screen.
5. Wait for some time for the process to be completed. Then, reconnect to it.
Recommended:
The methods discussed in this article have proven to be successful to fix Android Wi-Fi authentication error. If you still cannot connect to the desired network, then you might have hardware-related issues. You will need to contact a professional to tackle this problem. Let us know which method worked for you. If you have any queries, then feel free to drop them in the comments section.
