What a network settings reset is, and why it works
Resetting network settings wipes all of your phone's connectivity configuration back to factory defaults in one action: every saved Wi-Fi network and password, every Bluetooth pairing, your mobile data and APN customizations, VPN configurations, and various hidden network parameters. It touches nothing else, your apps, photos, messages and files are completely untouched, this is a targeted reset of connectivity state only, not a factory reset. That targeting is exactly why it is so useful: it clears corrupted network state that individual toggles cannot reach, without the cost of wiping the phone.
It works because connectivity problems are often stale or corrupted state rather than hardware faults. Over months, a phone accumulates conflicting Wi-Fi records, dead Bluetooth pairings, misconfigured APN edits, leftover VPN and proxy settings, and cached network parameters, and any of these can cause the stubborn problems our Wi-Fi, Bluetooth and no-data guides describe: Wi-Fi that will not connect, Bluetooth that will not pair, data that will not flow. When forget-and-rejoin and restart-the-router have failed, the network reset clears ALL of that accumulated state at once, which is why it so often succeeds where narrower fixes did not.
Think of it as the connectivity equivalent of a clean slate: instead of hunting for the one bad setting among dozens, you reset all connectivity settings to known-good defaults and reconnect fresh. It is the standard escalation step in every connectivity guide on this site, tried after the quick fixes and before drastic measures like a factory reset, because it resolves a large share of stubborn cases at the modest cost of re-entering your Wi-Fi passwords and re-pairing your Bluetooth devices.
Exactly what gets erased (prepare first)
Before resetting, know precisely what you will lose so you can prepare, because the reset is irreversible and unprompted about specifics. It erases: all saved Wi-Fi networks and their passwords (you will re-enter them), all Bluetooth pairings (you will re-pair earbuds, car, watch, everything), mobile network selections and any manual APN settings (they return to carrier defaults), VPN configurations (you will re-add them), and preferences like whether Wi-Fi or Bluetooth were on. On some phones it also resets airplane-mode and data-roaming toggles to defaults.
The one thing to prepare is your Wi-Fi passwords, because the phone forgets them and cannot remind you. Note the passwords for the networks you connect to regularly, home, work, family, before you reset, or make sure you can retrieve them (from the router, a housemate, or the network admin). Modern Android can share saved Wi-Fi passwords via QR code (in the Wi-Fi network details) before you reset, a handy way to capture them. For Bluetooth, no preparation is needed beyond knowing you will re-pair; for VPN, have your configuration details or the VPN app ready to reconfigure.
What you do NOT lose is worth stating clearly to calm the nerves: no apps, no photos, no messages, no contacts, no accounts, no files, none of it is touched. This is purely a connectivity reset. That is the whole appeal, it is far less disruptive than a factory reset while clearing the same corrupted network state a factory reset would, so it belongs well before a factory reset in any troubleshooting sequence. If your problem is connectivity, this reset is the high-value, low-cost move.
How to do it, and reconnecting afterward
The path varies slightly by brand but is easy to find. Stock Android: Settings, System, Reset options, Reset Wi-Fi, mobile and Bluetooth. Samsung: Settings, General management, Reset, Reset network settings (or Reset mobile network settings). If the menu differs, search Settings for 'reset network' and it will surface. Confirm, enter your PIN if asked, and the phone resets the connectivity configuration, usually with a quick restart. There is no long wait and no data migration; it is over in a moment.
Reconnect in order afterward. Wi-Fi first: open Wi-Fi settings, select your network, and enter the password you prepared, your phone reconnects and remembers it going forward. Bluetooth next: put each accessory into pairing mode and pair fresh (our Bluetooth guide's ritual if any resist), earbuds, car, watch, speakers, one at a time. Mobile data should work automatically as the APN returned to carrier defaults; if data does not flow, that is the APN-reset case from our no-data guide, usually fixed by toggling airplane mode or, rarely, re-selecting the carrier's APN. Re-add any VPN last.
Verify the fix with real measurement, not just a hopeful glance. Load a website to confirm internet, and run our internet speed test to confirm Wi-Fi and mobile data are performing, a measured before-and-after is how you know the reset actually resolved the problem rather than merely seeming to. If your stubborn connectivity issue is gone, you are done, and the modest cost of reconnecting was well spent. If it persists even after the reset, you have valuable information: the problem is deeper than settings, and the escalation path in the relevant connectivity guide (or the hardware verdict) is next.
When to use it, and when to reach for something else
Reach for a network reset when the quick fixes have failed and the problem is genuinely connectivity. Good candidates: Wi-Fi that will not connect or repeatedly authenticates and fails across networks, Bluetooth that will not pair with anything after the pairing ritual, mobile data dead despite signal after checking the APN, or a phone that connects but behaves erratically after a lot of network fiddling (many VPN experiments, manual APN edits, dozens of saved networks). In all of these, the accumulated-state theory fits, and the reset clears it. It is the standard next step in our Wi-Fi, Bluetooth and no-data guides for exactly these cases.
Do the narrower fixes first, though, because the reset costs you reconnection effort. Before resetting: forget and rejoin the specific problem network, restart the phone and the router, toggle airplane mode, and check the obvious settings (correct password, APN defaults, roaming on if abroad). If those resolve it, you save yourself re-entering every Wi-Fi password. The network reset is the escalation for when the targeted fixes did NOT work, not the first thing to try, its power is precisely that it clears everything, which is also why it is not the lightest touch.
And know when the problem is beyond any reset. If connectivity fails on multiple networks and survives the network reset AND a factory reset, or if it began after a drop or water and comes with other symptoms, the issue is likely hardware, the antenna or radio module, and our Wi-Fi, Bluetooth and no-signal guides cover reaching that verdict. The network reset is a brilliant tool for the large middle ground of corrupted-state problems, but it cannot fix a broken radio. Use it as the high-value software escalation it is: after the quick fixes, before the factory reset, and as the clean line between 'it was just settings' and 'it might be hardware'.
After the reset: a healthier network setup
Use the fresh slate to set things up cleanly rather than recreating the clutter. Reconnect only the Wi-Fi networks you actually use rather than every network you have ever touched, and let the old café and airport networks stay forgotten, fewer saved networks means less state to go stale. Re-pair only the Bluetooth accessories you currently use, and forget the ones you have retired, a lean pairing list is a healthier one, as our Bluetooth guide notes. If you had VPN or private-DNS settings, re-add them deliberately and note that a misconfigured VPN or DNS is itself a common cause of the 'connected but no internet' problem, so add them knowing they are potential culprits.
Fold the reset into your broader troubleshooting toolkit rather than treating it as a mysterious last resort. It is simply the connectivity clean-slate: quick to do, safe for your data, and effective against the stubborn state-corruption problems that individual toggles cannot reach. Knowing it exists and what it costs (reconnection, nothing more) means you can deploy it confidently the next time Wi-Fi, Bluetooth or data misbehaves past the quick fixes, without the fear that it might wipe your phone, it will not.
Finally, prevent the state buildup that made the reset necessary. Keep the router firmware and the phone updated (many connectivity bugs are fixed in updates), do the occasional router reboot as legitimate maintenance, and resist accumulating dozens of saved networks and dead pairings. A phone whose connectivity is kept tidy rarely needs the reset at all, and when a genuine problem does arise, you will have the full escalation path, quick fixes, then network reset, then hardware verdict, ready to run, with our speed test to verify each step objectively.