尽管在状态栏上看到 Wi-Fi 符号，您是否发现无法在 iPhone 上访问互联网？与软件相关的故障、冲突的设置和损坏的配置（无论是在 iOS 设备上还是在 Wi-Fi 路由器上）通常会导致此问题。
继续阅读以了解解决此问题并让您的 iPhone 恢复在线的多种方法。
1.禁用/启用Wi-Fi
最好通过消除iPhone 上的Wi-Fi模块可能出现的故障来开始工作。(Wi-Fi)您可以通过禁用和重新启用Wi-Fi来做到这一点。
首先打开设置(Settings)应用程序并点击Wi-Fi。然后，关闭Wi-Fi(Wi-Fi)旁边的开关，等待 10 秒，然后重新激活。或者，您可以尝试打开飞行模式(toggling Airplane Mode)，然后关闭。
2.重启路由器或调制解调器
您是否尝试过重新启动路由器？路由器端问题通常是阻止设备连接到互联网的主要原因，通常只需重启即可解决这些问题。
因此，如果路由器位于可访问区域，只需将其关闭，等待一分钟，然后将其打开。然后，重新连接到无线网络并检查问题是否再次出现。您也可以在访问路由器的控制面板(accessing the router’s control panel)后启动重启。
3.重启你的 iPhone
以下修复涉及重新启动 iPhone。这是解决源自有缺陷的系统软件的连接问题的最佳方法。
为此，请打开“设置”(Settings)应用并转到“常规(General)” > “关机”(Shut Down)。然后，向右滑动电源(Power)滑块，等待 30 秒，然后按住侧边(Side)按钮，直到看到Apple标志。
4.忘记并重新加入网络
在没有互联网连接的情况下修复 Wi-Fi 网络的另一种方法是忘记并重新加入它。首先(First)，打开设置(Settings )应用并点击Wi-Fi。接下来，点击信息(Info )图标，然后选择忘记此网络(Forget This Network)。然后，您可以从Wi-Fi主屏幕重新加入网络。
5.检查另一台设备上的连接(Connectivity)
您是否尝试过在另一台设备上连接到同一个Wi-Fi网络？(Wi-Fi)如果您可以通过这种方式访问互联网，则问题可能仅限于您的 iPhone。如果不是，那就和路由器有关。继续进行其余的修复，同时跳过任何不适用的修复。
6. 检查日期和时间
iPhone 上的日期和时间设置不正确也可能导致潜在的 Wi-Fi 相关问题。因此，打开“设置”(Settings)应用并点击“通用(General)” > “数据和时间”(Data & Time)。然后，确保自动设置( Set Automatically )旁边的开关处于活动状态。如果已经是，但时间显示不正确，请禁用该选项并手动为您的 iPhone 设置正确的日期和时间(manually set the correct date and time for your iPhone)。
7. 登录专属网络
各种公共Wi-Fi热点属于“强制网络”类别。在访问互联网之前，您必须登录网络、输入有效的电子邮件地址或接受特定的条款和条件。
转到设置(Settings)> Wi-Fi，点击无线网络旁边的信息图标，然后执行所需的条件以进行在线连接。(Info)询问周围是否需要帮助。
8.禁用私有MAC地址
从 iOS 14 开始，您的 iPhone 会自动使用12 位十六进制数字(randomized string of 12 hexadecimal digits to improve privacy)的随机字符串掩盖其MAC（媒体访问控制）地址(MAC (Media Access Control) address)，以改善隐私。但是，除非您禁用私有地址，否则即使连接到网络，某些运营商仍可能会限制 Internet 访问。
转到设置(Settings)> Wi-Fi >信息(Info)（有问题的网络旁边），然后关闭Private Wi-Fi Address旁边的开关。
9.查看MAC过滤列表
您的 iPhone 也可能被阻止从路由器本身访问互联网。如果您可以访问路由器的控制面板，则可以取消阻止它。
首先，通过前往Settings > Wi-Fi > Info来(Info)识别您 iPhone 的私人或实际 MAC 地址(identify your iPhone’s private or actual MAC address )。然后，在路由器控制面板上找到MAC地址过滤菜单——它通常位于“安全(Security)”部分下。如果您的 iPhone MAC地址出现，请将其删除。或者禁用MAC地址过滤。
10.更新路由器
接下来，尝试通过在其控制面板上查找更新选项卡或选项来更新您的路由器。(Update)如果有更新待定，请应用它并检查是否可以恢复 iPhone 上的互联网连接。
11. 使用谷歌 DNS
如果问题仅限于特定网站和应用程序，请更改无线连接的DNS设置。(DNS)例如，将默认DNS服务器替换为Google DNS可以显着改善互联网连接。
打开设置(Settings )应用程序并点击Wi-Fi。然后，点击网络旁边的信息图标，点击(Info )配置 DNS(Configure DNS) >手动(Manual)，然后将 Google DNS 服务器（ 8.8.8.8和8.8.4.4 ）添加到 DNS(8.8.4.4)服务器(DNS Servers)下的列表中。
12.禁用私人中继
作为 iCloud+ 的一项功能，iCloud Private Relay通过加密和重新路由通过多个服务器的互联网流量来增强在线隐私。但是，该功能相对较新，并且往往会导致Wi-Fi和蜂窝(Cellular)网络的连接问题。
要禁用 iCloud Private Relay，请前往设置(Settings)> Apple ID > iCloud > Private Relay (Beta)并关闭Private Relay (Beta)旁边的开关。
13.禁用低数据模式(Data Mode)和低功耗模式(Low Power Mode)
低数据模式(Low Data Mode)是一项通过限制自动更新和后台任务来节省 Wi-Fi 连接带宽的功能。因此，如果问题仅限于特定活动（例如照片(Photos)和邮件(Mail)同步），请禁用它并检查是否有影响。
为此，请打开设置(Settings)应用程序，点击Wi-Fi，点击无线网络旁边的信息(Info)图标，然后关闭低数据模式(Low Data Mode)旁边的开关。
如果您有始终使用低功耗模式的习惯，那么您还必须期望通过(Low Power Mode)Wi-Fi进行有限的活动。要禁用该功能，请转到设置(Settings)>电池(Battery)并关闭低功耗模式( Low Power Mode)旁边的开关。
14.重置所有网络设置
如果问题仍然存在，您必须重置 iPhone 上的网络设置。这会清除 DNS 缓存(clears the DNS cache )，还有助于从等式中排除 iOS 中损坏的 Wi-Fi 配置。
为此，请打开“设置”(Settings )应用并点击“通用(General )” > “传输或重置 iPhone(Transfer or Reset iPhone) ” > “重置(Reset )” > “重置网络设置”(Reset Network Settings)。然后，输入设备密码并点击重置网络设置(Reset Network Settings)进行确认。网络重置后，进入设置(Settings)> Wi-Fi并重新加入无线网络。
15. 出厂重置您的路由器
路由器端损坏(Broken)的配置和首选项也可能导致问题。您可以通过设备的控制面板将路由器重置为出厂默认设置来解决此问题。或者，寻找物理重置(Reset )按钮。这是出厂重置无线路由器(factory resetting a wireless router)的完整指南。
联系您的互联网服务提供商(Internet Service Provider)
(Did)上面的Wi-Fi修复都没有帮助吗？不要忽视Wi-Fi问题也可能与帐户相关的事实。例如，您可能已超出每月带宽或由于计费问题而被临时阻止。问题甚至可能是服务中断。如果您怀疑可能是这种情况，请检查您的帐户仪表板或联系您的互联网提供商寻求支持。
15 Fixes When iOS is Connected to Wi-Fi but No Internet
Do you find it impossible to accеss the internet on your iPhone despite seeing the Wi-Fi symbol on the status bаr? Software-related glitcheѕ, conflicting settings, and cоrrupt cоnfiguratіons—either on the iOS device or the Wi-Fi roυter—often cause this issυe.
Read on to learn about multiple ways to troubleshoot this problem and get your iPhone or back online.
1. Disable/Enable Wi-Fi
It’s best to kick things off by eliminating possible glitches with the Wi-Fi module on your iPhone. You can do that by disabling and re-enabling Wi-Fi.
Start by opening the Settings app and tapping Wi-Fi. Then, de-activate the switch next to Wi-Fi, wait 10 seconds, and reactivate it. Alternatively, you can try toggling Airplane Mode on, then off.
2. Restart Router or Modem
Have you tried restarting your router yet? Router-side issues are often the main reason that prevents devices from connecting to the internet, and a reboot usually is all it takes to resolve them.
So, if the router is in an accessible area, just turn it off, wait for up to a minute, and turn it on. Then, reconnect to the wireless network and check if the problem recurs. You can also initiate a reboot after accessing the router’s control panel.
3. Restart Your iPhone
The following fix involves restarting your iPhone. That’s the best way to fix problems with connectivity that originate from buggy system software.
To do that, open the Settings app and go to General > Shut Down. Then, swipe the Power slider to the right, wait for 30 seconds, and hold the Side button until you see the Apple logo.
4. Forget and Rejoin Network
Another way to fix a Wi-Fi network without internet connectivity is to forget and join it again. First, open the Settings app and tap Wi-Fi. Next, tap the Info icon, and select Forget This Network. You can then rejoin the network from the main Wi-Fi screen.
5. Check for Connectivity on Another Device
Have you tried connecting to the same Wi-Fi network on another device? If you can access the internet that way, the problem is likely limited to your iPhone only. If not, it’s got something to do with the router. Move on with the rest of the fixes while skipping any that don’t apply.
6. Check Date and Time
Having the date and time set up incorrectly on your iPhone can also result in potential Wi-Fi-related issues. So, open the Settings app and tap General > Data & Time. Then, make sure the switch next to Set Automatically is active. If it already is, but the time appears incorrect, deactivate the option and manually set the correct date and time for your iPhone.
7. Sign Into Captive Network
Various public Wi-Fi hotspots fall into the “captive network” category. You must sign into the network, enter a valid email address, or accept specific terms and conditions before accessing the internet.
Go to Settings > Wi-Fi, tap the Info icon next to the wireless network, and perform the required criteria to connect online. Ask around if you need help.
8. Disable Private MAC Address
Starting iOS 14, your iPhone automatically masks its MAC (Media Access Control) address with a randomized string of 12 hexadecimal digits to improve privacy. However, some operators may restrict internet access despite connecting to a network unless you disable the private address.
Go to Settings > Wi-Fi > Info (next to the problematic network) and turn off the switch next to Private Wi-Fi Address.
9. Check MAC Filter List
It’s also possible your iPhone is blocked from accessing the internet from the router itself. If you can access the router’s control panel, you can unblock it.
First, identify your iPhone’s private or actual MAC address by heading over to Settings > Wi-Fi > Info. Then, locate the MAC address filtering menu on your router’s control panel—it’s typically located under the Security section. If your iPhone MAC address appears, remove it. Or disable MAC address filtering.
10. Update Router
Next up, try updating your router by looking for an Update tab or option on its control panel. If there’s an update pending, apply it and check if that restores internet connectivity on your iPhone.
11. Use Google DNS
Change the DNS settings for the wireless connection if the issue is limited to particular websites and apps only. For example, replacing the default DNS servers with Google DNS can significantly improve internet connectivity.
Open the Settings app and tap Wi-Fi. Then, tap the Info icon next to the network, tap Configure DNS > Manual, and add the Google DNS servers—8.8.8.8 and 8.8.4.4—into the list under DNS Servers.
12. Disable Private Relay
An iCloud+ feature, iCloud Private Relay boosts online privacy by encrypting and re-routing internet traffic through multiple servers. However, the feature is relatively new and tends to cause connectivity issues on both Wi-Fi and Cellular.
To disable iCloud Private Relay, go to Settings > Apple ID > iCloud > Private Relay (Beta) and turn off the switch next to Private Relay (Beta).
13. Disable Low Data Mode & Low Power Mode
Low Data Mode is a feature that conserves bandwidth on Wi-Fi connections by limiting automatic updates and background tasks. So, if the issue is limited to specific activities (such as Photos and Mail syncing), disable it and check if that makes a difference.
To do that, open the Settings app, tap Wi-Fi, tap the Info icon next to the wireless network, and turn off the switch next to Low Data Mode.
If you have a habit of always using Low Power Mode, you must also expect limited activity over Wi-Fi. To disable the feature, go to Settings > Battery and turn off the switch next to Low Power Mode.
14. Reset All Network Settings
If the issue persists, you must reset the network settings on your iPhone. That clears the DNS cache and also helps rule out broken Wi-Fi configurations in iOS from the equation.
To do that, open the Settings app and tap General > Transfer or Reset iPhone > Reset > Reset Network Settings. Then, enter the device passcode and tap Reset Network Settings to confirm. After the network reset, go to Settings > Wi-Fi and re-join the wireless network.
15. Factory Reset Your Router
Broken configurations and preferences on the router side can also cause issues. You can resolve that by resetting the router to factory defaults via the device’s control panel. Or, look for a physical Reset button. Here’s the complete guide to factory resetting a wireless router.
Contact Your Internet Service Provider
Did none of the Wi-Fi fixes above help? Don’t discount the fact that Wi-Fi problems could also be account-related. For example, you might have exceeded your monthly bandwidth or had a temporary block imposed due to a billing issue. The issue could even be a service outage. If you suspect that might be the case, check your account dashboard or contact your internet provider for support.
