[{"data":1,"prerenderedAt":224},["ShallowReactive",2],{"blog:vpn-after-system-update":3},{"zh-CN":4,"en":121},{"blocks":5,"faq":105},[6,9,11,13,17,19,24,26,29,31,33,35,38,40,44,51,54,60,62,65,67,70,72,78,81,83,85,91,93,96,98,101,103],{"type":7,"html":8},"p","系统升级完，VPN 图标还在，网却上不去——这种情况十次里九次不是 App 坏了，是升级顺手把某个网络权限或电池设置重置成了默认状态。大版本升级会重新确认一遍敏感权限，这是系统自己的安全机制，VPN 类 App 首当其冲。",{"type":7,"html":10},"这篇按 iOS 和 Android 分别列出升级后该查的几个开关，也顺带说一下 Windows 和 macOS 上类似的情况，不用先卸载重装，两分钟基本能查完。",{"type":7,"html":12},"排查原则同样是：\u003Cstrong>一次只查一处\u003C\u002Fstrong>。设置改了好几个再测试，就算恢复了也不知道是哪一步起的作用，下次升级又要重新猜一遍。",{"type":14,"id":15,"html":16},"h2","bp-isolate","先确认是不是这个问题",{"type":7,"html":18},"升级后网络出问题，不一定是权限被收回，也可能只是巧合——升级和另一件事凑巧发生在同一天，看着像因果，其实没关系。先看两件事，能少走弯路：",{"type":20,"items":21},"list",[22,23],"问题出现的时间点：升级完成那一刻才第一次出现，权限被收回的可能性大；升级前就已经偶尔连不上、卡顿，升级只是恰好同一天发生，继续查权限多半是白费功夫。","问题的范围：只是这一个 VPN App 连不上，其他 App 和不开 VPN 的浏览器都能正常上网，符合权限被收回的表现；如果不开 VPN 时手机本身也没有信号、Wi-Fi 图标打叉，那是设备本身的网络先出了故障，得先解决最基础的联网问题，权限这一层还轮不到。",{"type":7,"html":25},"确认过这两点，再往下看该查哪个开关，会比一上来就照着清单逐条试更快找到方向。",{"type":14,"id":27,"html":28},"bp-why","为什么升级会影响 VPN",{"type":7,"html":30},"系统每次大版本升级，都会把一部分和网络、后台活动相关的权限重新走一遍确认流程——这不是针对某一个 App，是升级本身的常规动作。VPN 类 App 需要的权限恰好比大多数 App 更敏感（本地网络访问、始终在后台运行），所以升级后最容易被收回的，也正好是它需要的那几项。",{"type":7,"html":32},"App 本身的代码可能完全没变，但系统层面已经把授权收回，App 自己感知不到，只会表现成「连接中」卡住，或者显示已连接却没有流量。这也是为什么重装 App 经常没用——问题根本不在 App 那一层，重装解决不了系统层收回的权限，只有重新授权才有用。",{"type":7,"html":34},"还有一种情况容易被忽略：升级过程本身如果中断过、或者是分几次小版本叠加升级上来的，中间某一次的权限确认可能被跳过或者没弹出来，等于权限停在了一个中间状态，App 自己也不知道该报错还是该正常工作，表现就会变得时好时坏。",{"type":14,"id":36,"html":37},"bp-checklist","升级后该检查的几个开关",{"type":7,"html":39},"按手机系统分别看，不用两边都查。",{"type":41,"id":42,"html":43},"h3","ios","iOS 升级后",{"type":20,"items":45,"ordered":50},[46,47,48,49],"设置 → 通用 → VPN 与设备管理，确认 VPN 配置描述文件还在，没有被系统标记为「未验证」。","设置 → 隐私与安全性 → 本地网络，确认这个 App 的权限还是开着的——大版本升级有时会把这类权限重新收回，需要手动再打开一次。","检查电池设置里这个 App 是否又被重新归类到需要额外确认的名单，升级经常会清空之前设置好的例外。","以上都正常还是不行，才轮到卸载重装，重新走一次完整的授权流程。",true,{"type":41,"id":52,"html":53},"android","Android 升级后",{"type":20,"items":55,"ordered":50},[56,57,58,59],"设置 → 应用 → 找到 VPN App，确认「始终允许后台活动」的权限还打开着。","设置 → 电池 → 应用耗电管理，升级后经常会把所有 App 重新归到默认的优化档位，需要重新单独设为不受限制。","部分厂商的系统升级会重置 VPN 快速设置的授权，如果一直显示连接中却没反应，去系统的 VPN 设置列表里手动重新选一次。","确认没有第二个 VPN 或者代理类 App 同时声明了 VPN 权限——同一时间系统只会把这个权限交给一个 App，升级后偶尔会出现两边都不工作的冲突。",{"type":61},"downloads",{"type":14,"id":63,"html":64},"bp-desktop","电脑上的类似情况",{"type":7,"html":66},"Windows 和 macOS 的大版本升级也有类似的情况。系统更新经常会重新确认一次网络扩展的授权，或者把防火墙、安全性设置恢复成默认状态，有时候还会顺手清掉之前允许开机自启的那条例外。表现和手机上差不多：客户端显示已连接，实际却没有流量，或者一直卡在正在连接。查的方式也类似——先去系统的网络设置或安全性设置里，确认这个 App 的网络扩展权限还是允许状态，而不是急着卸载重装，重装同样解决不了系统层面收回的授权。",{"type":14,"id":68,"html":69},"bp-pitfalls","容易走偏的几个想法",{"type":7,"html":71},"排查这类问题时，有几个方向容易白花时间。",{"type":20,"items":73},[74,75,76,77],"升级完直接卸载重装，其实多数情况只是权限被收回，重新点一次授权比重装快得多，重装只是把同一步换了个更麻烦的方式再做一遍。","看到状态栏还显示 VPN 图标就以为已经连上——图标有时候是上一次连接状态的残留，断开重连一次才能确认现在到底连没连。","只查了 App 内部的设置页面，没查系统层的权限入口——App 自己给不了系统权限，这两处要分开看。","升级完马上换了个节点想「测试一下」，结果把问题搞混了——先在原来的节点上确认权限是否恢复，换节点排查留到权限没问题之后再做，两件事一起改会分不清是哪一步生效的。",{"type":14,"id":79,"html":80},"bp-support","联系客服前，先把这几条记下来",{"type":7,"html":82},"按前面的清单查过一遍，问题依然没解决，联系客服时也别只发一句「VPN 用不了」——带着具体信息去问，能省掉来回确认的好几轮对话。",{"type":7,"html":84},"值得先记下来的几条：",{"type":20,"items":86},[87,88,89,90],"升级是什么时候完成的，问题是升级后立刻出现，还是过了一段时间才发现","用的是 iOS 还是 Android，系统版本号是多少","本地网络权限和电池名单这两处查出来分别是开还是关","换了一个节点之后是不是还是同样的情况",{"type":7,"html":92},"这几条合在一起，基本能让客服跳过「先确认是不是权限问题」这一步，直接判断是设备本身的个例，还是这次系统更新影响了一批用户。真遇到查不出原因的情况，把这些信息带去\u003Ca href=\"\u002Fcontact\u002F\">联系客服\u003C\u002Fa>，比反复描述「连不上」要快得多。",{"type":14,"id":94,"html":95},"bp-stable","升级之后怎么少踩坑",{"type":7,"html":97},"大版本升级前后，\u003Ca href=\"\u002Ffeatures\u002F\">快橙\u003C\u002Fa> 的连接状态会在权限被收回时如实显示成未连接，而不是硬撑一个假的「已连接」——这一点在排查的时候很关键，至少能确定问题出在权限这一层，不用先怀疑线路或者节点。如果是刚换手机、或者升级完之后想干脆重新设置一遍，iPhone 怎么设置 VPN 和 安卓手机怎么设置 VPN 把完整流程走了一遍，比单独排查权限更省事。如果查完权限还是装不上、提示不受信任，那已经不是权限被收回的问题，\u003Ca href=\"\u002Fblog\u002Fvpn-app-wont-install\u002F\">App 装不上的处理办法\u003C\u002Fa> 讲的是另一层情况。",{"type":14,"id":99,"html":100},"bp-final","总结",{"type":7,"html":102},"系统升级后 VPN 不工作，大概率是升级顺手收回了本地网络权限或者电池例外，不是 App 本身坏了。按 iOS 或 Android 对应的几个开关查一遍，通常比卸载重装更快恢复。",{"type":7,"html":104},"以后每次大版本升级完，先花两分钟按对应系统查一遍这几个开关，再决定要不要重装——多数情况下，重新点一次授权就能恢复，根本不需要卸载。\u003Ca href=\"\u002Forder\u002F\">快橙\u003C\u002Fa> 支持 iOS、Android、Windows 和 macOS，注册后每天有免费试用时长，升级后先测一次连接状态，确认清楚再放心用。",[106,109,112,115,118],{"q":107,"a":108},"升级完 VPN 显示已连接，但还是上不了网，是为什么？","图标有时候是上一次连接状态的残留，不代表当前真的连着。先手动断开重连一次，再判断是不是权限被收回了。",{"q":110,"a":111},"每次系统升级都要重新设置一遍吗？","不是每次都会，但大版本升级经常会重新确认一遍敏感权限，这是系统自己的安全机制，不是 App 的问题，重新点一次授权就好。",{"q":113,"a":114},"iOS 和 Android 哪个升级后更容易出问题？","两边都可能，只是收回的权限种类不一样：iOS 更常见的是本地网络权限，Android 更常见的是电池优化名单被重置。",{"q":116,"a":117},"重装 App 能解决吗？","能，但多数情况不需要——权限被收回，重新点一次授权比卸载重装快得多，重装只是把这一步换了个更麻烦的方式做一遍。",{"q":119,"a":120},"快橙在这种情况下需要注意什么？","升级后如果显示连接中却一直没反应，去系统设置里确认一下本地网络权限和电池名单，多数时候一次授权就能恢复。",{"blocks":122,"faq":208},[123,125,127,129,131,133,137,139,141,143,145,147,149,151,154,160,163,169,170,172,174,176,178,184,186,188,190,196,198,200,202,204,206],{"type":7,"html":124},"The update finishes, the VPN icon is still sitting there, and the internet just won't load — nine times out of ten that's not the app breaking, it's the update quietly resetting a network permission or battery setting back to default. A major version update re-confirms sensitive permissions as routine, and VPN-type apps are the first to feel it.",{"type":7,"html":126},"This lists what to check after an update, separately for iOS and Android, plus a quick note on the similar situation on Windows and macOS — no need to uninstall and reinstall first, and it takes about two minutes either way.",{"type":7,"html":128},"The same rule applies here too: \u003Cstrong>check one thing at a time\u003C\u002Fstrong>. Change several settings and then test, and even if it comes back, you won't know which one actually fixed it — and you'll be guessing again at the next update.",{"type":14,"id":15,"html":130},"Confirm this is actually the problem",{"type":7,"html":132},"Something breaking right after an update isn't always a revoked permission — sometimes it's just a coincidence, two things landing on the same day that look connected but aren't. Two checks first save some wrong turns:",{"type":20,"items":134},[135,136],"Timing: if the problem showed up for the first time the moment the update finished, a revoked permission is likely. If the connection was already occasionally dropping or lagging before the update, and the update just happened to land the same day, chasing permissions is probably a waste of time.","Scope: if only this one VPN app fails to connect while every other app and the browser without the VPN get online fine, that fits a revoked permission. If the phone has no signal and the Wi-Fi icon shows an X even with the VPN off, that's not a permission problem at all — the device's own network is down first, and that needs fixing before permissions are even worth checking.",{"type":7,"html":138},"Confirming these two first points at which switch is worth checking, faster than working through the checklist from the top.",{"type":14,"id":27,"html":140},"Why an update affects a VPN",{"type":7,"html":142},"Every major system update re-runs a confirmation pass over a set of permissions tied to networking and background activity — this isn't aimed at any one app, it's routine behavior for the update itself. A VPN-type app happens to need permissions that are more sensitive than most apps (local network access, staying active in the background at all times), so the permissions most likely to get pulled back after an update are exactly the ones it depends on.",{"type":7,"html":144},"The app's own code may not have changed at all, but with the authorization pulled back at the system level, the app itself can't tell — it just shows "connecting" stuck in place, or reports connected with no actual traffic. That's also why reinstalling the app so often doesn't help: the problem isn't at the app layer at all, and reinstalling doesn't fix a permission the system took back — only granting it again does.",{"type":7,"html":146},"There's a second case that's easy to miss: if the update itself got interrupted, or arrived as several minor versions stacked on top of each other, one of those in-between permission confirmations may have been skipped or never shown at all. That leaves the permission stuck in a middle state where the app itself doesn't know whether to report an error or behave normally, so it ends up working inconsistently.",{"type":14,"id":36,"html":148},"What to check after an update",{"type":7,"html":150},"Check the section for your own system — no need to go through both.",{"type":41,"id":152,"html":153},"after-an-ios-update","After an iOS update",{"type":20,"items":155,"ordered":50},[156,157,158,159],"Settings → General → VPN & Device Management — confirm the VPN configuration profile is still there and hasn't been flagged as "not verified" by the system.","Settings → Privacy & Security → Local Network — confirm this app's permission is still on. A major update sometimes pulls this back, and it needs to be turned on again by hand.","Check the battery settings to see whether the app got re-classified into a list that needs re-confirming — updates often clear an exception that was set before.","Only reinstall if all of the above check out and it still doesn't work — that runs the full authorization flow again from scratch.",{"type":41,"id":161,"html":162},"after-an-android-update","After an Android update",{"type":20,"items":164,"ordered":50},[165,166,167,168],"Settings → Apps → find the VPN app, and confirm "always allow background activity" is still on.","Settings → Battery → app battery usage — an update often resets every app back to the default optimized tier, so it needs to be set to unrestricted again individually.","Some manufacturers' system updates reset the authorization behind the VPN quick-settings tile. If it keeps showing connecting with no progress, go into the system's own VPN settings list and select it again by hand.","Confirm no second VPN or proxy-type app is also claiming the VPN permission at the same time — the system only ever grants that permission to one app, and updates occasionally leave both stuck not working.",{"type":61},{"type":14,"id":63,"html":171},"The same situation on a computer",{"type":7,"html":173},"Major updates on Windows and macOS produce a similar situation. A system update often re-confirms the authorization behind a network extension, or resets firewall and security settings back to default, and sometimes clears the exception that let the app launch at startup along the way. It looks much the same as on a phone: the client shows connected with no actual traffic, or stays stuck on connecting. Checking it is similar too — go into the system's network or security settings first and confirm this app's network extension permission is still allowed, rather than uninstalling and reinstalling right away; reinstalling doesn't fix an authorization the system took back at its own level either.",{"type":14,"id":68,"html":175},"A few ideas that send you down the wrong path",{"type":7,"html":177},"A handful of directions waste time when working through this.",{"type":20,"items":179},[180,181,182,183],"Uninstalling and reinstalling right after an update — in most cases it's just a revoked permission, and granting it again is far faster than reinstalling, which does the same step the hard way.","Seeing the VPN icon still in the status bar and assuming it's connected — the icon can be a leftover from the last connection state; disconnect and reconnect once to actually confirm the current state.","Only checking the app's own settings page and skipping the system-level permission screens — the app can't grant itself a system permission, so the two need to be checked separately.","Switching to a different node right after the update to "test it," which mixes two changes together — confirm the permission is restored on the original node first, and leave switching nodes for after that's settled, or you won't know which change actually fixed anything.",{"type":14,"id":79,"html":185},"Before contacting support, write these down",{"type":7,"html":187},"Worked through the checklist above and it's still not fixed? Don't just send support "the VPN doesn't work" — arriving with specifics saves several rounds of back-and-forth.",{"type":7,"html":189},"Worth noting down first:",{"type":20,"items":191},[192,193,194,195],"When the update finished, and whether the problem appeared right away or only showed up later","iOS or Android, and which system version","Whether local network permission and the battery exemption list each came back on or off when checked","Whether switching to a different node changes anything",{"type":7,"html":197},"Together, these let support skip straight past "confirm whether this is a permission issue" and get to whether it's specific to this device or this update is affecting a wider group of users. If nothing above turns up an answer, bring this information to \u003Ca href=\"\u002Fen\u002Fcontact\u002F\">support\u003C\u002Fa> — it's much faster than describing "it won't connect" over and over.",{"type":14,"id":94,"html":199},"Fewer surprises after the next update",{"type":7,"html":201},"Around a major update, \u003Ca href=\"\u002Fen\u002Ffeatures\u002F\">FastOrange\u003C\u002Fa> reports its connection state honestly as disconnected when a permission gets pulled back, rather than propping up a fake "connected" state — which matters here because it at least confirms the problem sits at the permission layer, not the route or the node. If you just switched phones, or would rather set everything up fresh after the update, setting up a VPN on iPhone and setting up a VPN on Android walk through the full process, which is often less hassle than tracking down one permission by hand. If the permissions all check out and it still won't install, or reports as untrusted, that's a different layer of problem — \u003Ca href=\"\u002Fen\u002Fblog\u002Fvpn-app-wont-install\u002F\">what to do when the app won't install\u003C\u002Fa> covers that instead.",{"type":14,"id":99,"html":203},"In summary",{"type":7,"html":205},"A VPN that stops working after a system update is usually the update quietly pulling back local network access or a battery exemption, not the app itself breaking. Working through the matching checklist for iOS or Android usually restores it faster than uninstalling and reinstalling.",{"type":7,"html":207},"From now on, spend two minutes running through the checklist for your system right after any major update, before deciding whether to reinstall — in most cases, granting the permission again is all it takes. \u003Ca href=\"\u002Fen\u002Forder\u002F\">FastOrange\u003C\u002Fa> supports iOS, Android, Windows, and macOS, and every registered account gets free trial time daily, so you can check the connection right after an update and know for sure before relying on it.",[209,212,215,218,221],{"q":210,"a":211},"It shows connected after the update, but nothing loads. Why?","The icon can be a leftover from the last connection and not reflect the current state. Disconnect and reconnect by hand first, then check whether a permission actually got revoked.",{"q":213,"a":214},"Do I have to redo this after every system update?","Not every time, but a major version update often re-confirms sensitive permissions as a matter of course. That's the system's own security behavior, not a problem with the app — granting it again is all it takes.",{"q":216,"a":217},"Which is more likely to break after an update, iOS or Android?","Both can, just different permissions get pulled back: iOS more often resets local network access, Android more often resets the battery optimization exemption.",{"q":219,"a":220},"Does reinstalling the app fix it?","It can, but usually isn't necessary — the permission was revoked, and granting it again is much faster than uninstalling and reinstalling, which just does the same step the hard way.",{"q":222,"a":223},"What should I watch for with FastOrange specifically in this situation?","If it shows connecting with no progress after an update, check local network permission and the battery exemption list in system settings — one re-grant usually restores it.",1793276291384]