Hey! If your LG phone internet stopped after restart, we can usually narrow down the cause with safe checks — without jumping to factory resets or doing anything that could mess with your carrier account.

First we need to figure out which “internet” is failing because the fix logic is different:
• Wi-Fi issue (Wi-Fi shows connected but apps say “No internet”).
• Mobile data issue (LTE/5G icon missing, or it shows but nothing loads).
• DNS / VPN / Private DNS issue (looks like the internet is “on,” but name lookups fail, certain apps won’t connect).
• System toggle glitch after reboot (airplane mode, data saver, roaming, SIM selection, or an “Internet” panel stuck state).

Tell me whichever details you know (any order):
1) After the restart, does Wi-Fi work? And does mobile data work?
2) What exactly do you see: “Connected, no internet,” an exclamation mark on Wi-Fi, no LTE/5G icon, or “Emergency calls only”?
3) Did anything change right before it happened? Update, new SIM, VPN app, private DNS, new router, or traveling/roaming?

I get it — “both Wi-Fi and mobile data” failing right after a reboot feels like the phone’s network stack got stuck, or something global (like VPN / DNS / data restriction) is blocking connections.

Quick safety framing: we’ll start with checks that are easy to undo and don’t wipe anything.

A few clarifiers (mixing order):
• When you open a browser, do you get a specific message (like “DNS_PROBE_FINISHED,” “No internet,” or does it just spin)?
• Does the Wi-Fi icon show an exclamation mark or “Connected without internet”?
• Are you using a VPN (work VPN, AdBlock VPN, “security” app, or 1.1.1.1/WARP)?
• In Settings, do you have Private DNS set to a custom provider (not “Automatic”)? That one can break internet across both Wi-Fi and data if the hostname is unreachable.

That’s a strong lead. A VPN or a custom Private DNS provider can make it look like “internet stopped working after restart,” because the phone can connect to Wi-Fi/cellular but can’t resolve or route traffic correctly.

The reason this often appears after a reboot: some VPN/DNS services reconnect automatically, and if they fail to establish cleanly, they can block traffic until they recover.

Safe check path (no permanent changes yet):
1) Check VPN status (quick settings tile or Settings → Network & internet → VPN). If it’s connected, try disconnecting it briefly as a test.
2) Check Private DNS mode: if it’s set to “Private DNS provider hostname,” note what hostname is entered. If that hostname isn’t reachable, both Wi-Fi and mobile data can feel “dead.”
3) Confirm the scope: does anything work at all (messaging apps, push notifications), or is it truly nothing across the board?

Before you toggle anything, tell me: are you on your usual Wi-Fi network (home/work), or a different network? And does a second device on the same Wi-Fi have internet right now? (This prevents chasing a router outage as a “phone issue.”)

Your caution is smart. The good news: toggling VPN/Private DNS is generally reversible (you can put it back exactly as it was), and for diagnosis we can do it in a controlled way.

Here’s the safe logic (not a “do this no matter what,” just how to interpret it):
• If disabling the VPN instantly restores internet, the issue is likely the VPN tunnel / app state after reboot.
• If switching Private DNS to Automatic restores internet, the custom DNS provider is likely unreachable or misconfigured right now.
• If neither changes anything, we pivot to SIM/APN, airplane-mode toggles, and Android network settings that can get stuck after restart.

To keep it low-risk: before changing Private DNS, simply write down the current hostname so you can restore it later.

One more check (different angle): do you see mobile signal bars and an LTE/5G icon at all, or is it showing “No service” / “Emergency calls only”?

“Connected but unusable” is exactly how DNS/VPN issues feel. Also, some work VPN setups are configured as Always-on VPN or “Block connections without VPN,” which can intentionally block all traffic if the VPN can’t connect cleanly.

Two safe questions to pinpoint that:
1) In VPN settings, is there anything like “Always-on VPN” or “Block connections without VPN”? If that’s enabled and the VPN is flaky after reboot, you can end up with no internet anywhere.
2) Does your work app show an error (can’t connect, certificate error, sign-in loop), or is it just normal but nothing loads elsewhere too?

Next, for mobile data specifically (without touching APN yet):
• Does toggling mobile data off/on change anything (icon flickers, network re-registers)?
• Do you have Data Saver on or a per-app data restriction? It usually doesn’t block everything, but after restarts people sometimes find a restriction got enabled.

As a short diagnostic, it’s typically safe in the sense that it doesn’t erase data — but whether it’s allowed depends on your workplace policy. I can’t tell you to bypass a policy, but I can help you understand what it means: if “block without VPN” is on and the VPN isn’t actually passing traffic, Android may block all connections to prevent leaks.

A lower-friction diagnostic (often policy-friendly) is to check whether the VPN is truly “up” versus just “connected” in name:
• Does the VPN show any error or reconnect loop?
• If you temporarily disconnect from Wi-Fi and use mobile data, does the VPN reconnect cleanly or still fail?
• If you disable Private DNS (set to Automatic), does the VPN start working? Some VPN/DNS combinations don’t play nicely after a reboot.

If your goal is simply “get basic internet back,” the safest approach is: identify whether the blocker is VPN policy, Private DNS misconfig, or a network stack glitch — then pick the smallest change that restores connectivity.

That result is very telling: if Wi-Fi internet returns when Private DNS is set back to Automatic, then the custom DNS provider hostname was likely unreachable (or blocked) — and that’s a common reason an LG (or any Android phone) feels “offline after restart.”

For mobile data still being weird, we should treat it as a second layer, because Wi-Fi and cellular can fail for different reasons even on the same day. Safe next questions (no deep edits yet):
1) Do you see LTE/5G stay stable now, or does it drop to H/3G/E or disappear?
2) Is your SIM set as the default for data (if you have dual SIM / eSIM options)?
3) Are you roaming or using a carrier that needs a specific APN? (Not asking you to change APN yet — just checking whether it’s a likely factor.)

If you want a “next-step” reading on patterns (not required, just helpful context), these are related troubleshooting topics people often confuse with this issue:
Android phone consent screen confusing – simple fix
Android phone charging very slowly – what to do next
Android phone battery not charging – easy help for seniors
Android phone camera shows black screen – easy help for seniors

The main takeaway so far: we’ve identified a global blocker (Private DNS). For cellular, we’ll confirm whether it’s a signal/register issue, a SIM/data toggle issue, or something APN-related — without doing guessy changes.