Network troubleshooting technician providing live chat help

Joe B.

Reviewed for technical accuracy

Specialities: Home networking, Wi-Fi routers, modems, Windows/macOS internet issues, DNS & IP configuration, ISP setup

Fix device not connecting after router reset — Wi-Fi won’t reconnect, no internet, incorrect password

Technician avatar Technician
Hi! We can definitely sort out your device not connecting after router reset so everything joins Wi-Fi and gets back online. I just need a quick picture of what happened.

When you reset the router, was it a quick reboot from the power button, or did you do a full factory reset with a pin in the Reset hole? After that reset, are all devices (phones, laptops, smart TV) refusing to connect, or is it just one device that shows “can’t connect to this network” or “incorrect password”?

On your router, do you now see a new Wi-Fi name (SSID) and default Wi-Fi password on a sticker, or did you re-use your old name and password? And finally, when a device does manage to connect, does it show Wi-Fi connected but no internet or “saved, secured, no internet”?
Customer
I held the tiny reset button on the back of the router for about 10 seconds, so I’m pretty sure it was a full factory reset. After that, the Wi-Fi name changed to the default one printed on the router. My phone connected once I typed that password, but my Windows laptop keeps saying “can’t connect to this network” and our smart TV says “no internet after router reset”. I tried restarting everything, but the laptop still refuses to connect or drops right away.
Technician avatar Technician
That helps a lot. A router factory reset wipes your custom Wi-Fi name, password, and in many cases your internet (WAN) settings. This is why “device not connecting after router reset” is so common.

The usual causes are:
• Devices are still trying to use the old Wi-Fi profile instead of the new SSID/password.
• Security mode changed (for example, older devices don’t like WPA3-only after a reset).
• The router hasn’t finished its internet setup, so devices can join Wi-Fi but show no internet after router reset.
• Your ISP requires PPPoE login, a special VLAN, or cloned MAC, and those settings were erased.

We’ll first confirm the router itself has a good internet connection, then fix the Wi-Fi configuration so every device can reconnect without “incorrect password” or “can’t connect to this network” errors.
Customer
If I plug my desktop PC straight into the modem with an Ethernet cable, the internet works fine. When I plug the modem into the router and then connect the PC by Ethernet to the router, it also works. The real problem seems to be Wi-Fi devices after the router reset: my phone is okay now, but the laptop and TV either won’t join the Wi-Fi or say there’s no internet.
Technician avatar Technician
Great, that tells us the modem and ISP are fine and that the router can reach the internet by cable. Now we’ll make sure the router’s wireless side is clean and that nothing in the reset left Wi-Fi half-configured.

Step A — Confirm internet and Wi-Fi status after the reset
1) Power off the modem and router for 30 seconds, then power on the modem first, wait until all “online” lights are solid, and only then power up the router. This clears out any weird state from the reset.
2) On a device that can connect (your phone), open a browser and go to the router’s admin page (something like 192.168.0.1 or 192.168.1.1). Confirm that the router’s Internet/WAN status shows “Connected” with a real IP address (not 0.0.0.0).
3) In the router’s Wireless or Wi-Fi settings, check the network name (SSID), password, and security mode. For compatibility, set security to WPA2-PSK (AES) or “WPA2/WPA3 mixed” rather than WPA3-only.

Once the router has internet and Wi-Fi is broadcasting in a compatible mode, we’ll clean up the broken Wi-Fi profiles on the laptop and TV that still “remember” the pre-reset network.
Customer
I checked: the router shows “Internet: Connected” with a normal IP, so WAN looks good. The Wi-Fi name is the default one from the sticker, and the security is set to WPA2/WPA3 mixed like you said. My phone and one tablet connect and have internet. The Windows laptop still says “can’t connect to this network” and the TV connects but shows “no internet after router reset” in its network test.
Technician avatar Technician
Perfect — that means the problem is now limited to devices that cached the old setup. This is the classic device not connecting after router reset situation.

Step B — Fix Wi-Fi profiles on the problematic devices
• On the Windows laptop:
  1) Go to Wi-Fi settings > Manage known networks, click your old Wi-Fi name and choose Forget.
  2) If you see the new default SSID listed, forget that too so we can start fresh.
  3) Reboot the laptop, then click the Wi-Fi icon and select the new network. Manually type the password from the router’s label and connect.
  4) If it still fails, update the laptop’s Wi-Fi adapter driver from Device Manager, then try again.

• On the smart TV:
  1) Open Network settings, choose Wi-Fi, select your network and “Forget” or “Remove” it.
  2) Make sure IP and DNS are set to Automatic/DHCP, not static values left over from before the reset.
  3) Reconnect to the Wi-Fi, entering the new password carefully.

After this, both devices should treat the Wi-Fi as completely new and stop fighting with the pre-reset configuration.
Customer
Forgetting the networks and rebooting helped. The laptop now connects and has internet, and the TV shows everything as “good” in the network test, but streaming apps still say they can’t reach the server. On the laptop, I’d previously set custom DNS servers before the reset. Could that cause issues after resetting the router too?
Technician avatar Technician
Yes, absolutely — old or incorrect DNS settings are one of the top reasons a device has no internet after router reset even though it says “connected”.

Step C — Reset IP and DNS on the laptop
1) On the laptop’s Wi-Fi adapter properties, set both the IPv4 address and DNS to “Obtain automatically” so it uses the router’s DHCP and DNS.
2) Open Command Prompt as administrator and run:
  • ipconfig /release
  • ipconfig /renew
  • ipconfig /flushdns
3) Disconnect from Wi-Fi and reconnect once more to the same network.
4) Test a couple of websites and a speed test. If that works, the laptop side of “no internet after router reset” is fixed.

For the TV apps, once Wi-Fi and DNS are automatic, power-cycle the TV (unplug it for 30 seconds), then relaunch the streaming apps. If other devices in the house can browse and stream fine, any remaining error on the TV is usually just cached app data or a sign-in issue, not the router itself.
Customer
I set IP and DNS back to automatic and ran those commands. The laptop now works perfectly. Unplugging the TV and reconnecting to Wi-Fi fixed streaming too. The only thing left is a work laptop that uses a VPN — since the router reset, it connects to Wi-Fi but drops the VPN every few minutes while other devices are fine.
Technician avatar Technician
Good news that everything else is solid — now we’re just tuning reliability for that work laptop.

A device disconnecting after router reset when using VPN is often caused by aggressive power-saving, band steering, or a congested Wi-Fi channel.

• In the router’s Wi-Fi settings, try separating the 2.4 GHz and 5 GHz bands into different SSIDs (for example, “Home-2G” and “Home-5G”). Connect the work laptop only to the 5 GHz or whichever band is more stable.
• Set a fixed, less crowded Wi-Fi channel instead of “Auto”, especially on 2.4 GHz (channels 1, 6, or 11 are usually best).
• Check for a firmware update on the router. After a factory reset, installing the latest firmware often resolves random drops and keeps devices connected.
• On the work laptop, disable Wi-Fi power saving in the adapter properties and make sure the VPN app is up to date.

If all other devices stay online and only that work laptop’s VPN drops, you’ve already proven the router reset and Wi-Fi network are healthy — we’re just eliminating remaining compatibility quirks.
Customer
I updated the router firmware and split the Wi-Fi into 2.4 and 5 GHz networks. The work laptop on 5 GHz seems stable now — the VPN hasn’t dropped since. At this point every device is connecting and has internet after the router reset. Is there anything else I should change so I don’t have to go through this again next time?
Technician avatar Technician
Nice work — now that every device can connect after the router reset, we can “future-proof” things a bit.

Step D — Prevent the “device not connecting after router reset” problem next time
• In the router admin page, look for an option to back up the configuration. Save a copy after everything is working. If you ever reset again, you can just restore this file instead of re-doing all settings.
• Write down or screenshot your Wi-Fi name, Wi-Fi password, and ISP login (PPPoE, if used) and store them somewhere safe so a factory reset isn’t a mystery.
• Turn on automatic firmware updates if the router supports it — newer firmware usually improves Wi-Fi stability and compatibility with phones, laptops, smart TVs, game consoles, and IoT devices.
• Avoid pressing the physical reset button unless really needed. For minor glitches, use a normal reboot from the router’s menu instead of a full factory reset.

With these in place, your home network should stay stable, and if you ever run into “can’t connect to this network after router reset” again, you’ll know exactly how to fix it quickly.
Customer
Got it. I created a backup of the router settings and saved the Wi-Fi and PPPoE details. Everything has been stable since we did these steps. Thanks for explaining what actually went wrong after the reset.
Technician avatar Technician
You’re very welcome — glad we could turn that router reset into a clean, working Wi-Fi setup instead of a headache.

Summary: When a device won’t connect after router reset, first confirm the router has internet from the modem, then check Wi-Fi name, password, and security mode, forget and reconnect to the new network on each device, and reset any manual IP/DNS tweaks. Updating router firmware and Wi-Fi drivers helps keep everything stable. If you ever get stuck again — “saved, no internet”, “incorrect password”, or “can’t connect to this network” — you can open a chat with an expert and we’ll walk through it live with you.
Customer
This was super helpful. All our devices connect now, and I understand what to do if someone hits the reset button again. Thanks a lot!
Technician avatar Technician
Anytime! If a friend or coworker says their device won’t connect after router reset or they see Wi-Fi connected but no internet after changing settings, you can share this checklist — and if you’d like someone to click through the router menus with you in real time, just start a chat with an expert and we’ll take it from there.

Quick answer: the accepted fix

Accepted fix when a device is not connecting after router reset: confirm the router has internet from the modem, then verify the new Wi-Fi name (SSID), password, and security mode, forget and reconnect to Wi-Fi on each device, and reset any manual IP/DNS settings so “Wi-Fi connected, no internet” or “can’t connect to this network” clears on all devices.

Why devices stop connecting after a router reset (Wi-Fi name, password, DNS, WAN)

Most device not connecting after router reset problems happen because the reset changed something your devices were relying on. The router may have gone back to a default Wi-Fi name and password, switched security mode, or lost its PPPoE, static IP, or DNS configuration. Your phone, laptop, or smart TV is still clinging to the old network profile, so it keeps failing to authenticate or getting bad network settings.

It helps to think in pieces — device → router (Wi-Fi) → router (internet/WAN) → modem → ISP. If a device works by Ethernet but not by Wi-Fi, the problem is the wireless configuration. If some devices connect after the reset and others don’t, those specific devices likely need their saved Wi-Fi network forgotten and their IP/DNS settings returned to automatic before they can join the new network cleanly.

How to tell if the problem is router setup or your device

To quickly narrow down a no internet after router reset issue, start by testing with a wired device directly to the modem. If that works, your ISP and modem are fine. Then connect through the router by cable to confirm the router’s WAN connection is okay. Only after that should you focus on the Wi-Fi connection itself.

If one phone and one laptop work perfectly on the new Wi-Fi but another device shows “can’t connect to this network” or “device not connecting after router reset”, the router is doing its job and the problem lives on that device: wrong password, outdated Wi-Fi driver, incompatible security mode, or manual DNS. If no Wi-Fi devices get internet, even though they connect, then the router’s internet settings (DHCP vs PPPoE, WAN IP, DNS) need to be checked in the admin page.

Device not connecting after router reset — quick troubleshooting tips

Confirm the router has internet, then refresh Wi-Fi profiles and DNS on each device.

Fast path: test the modem directly → confirm the router’s Internet/WAN status is “Connected” → check the Wi-Fi name, password, and security mode after the reset → on every device, forget and reconnect to the Wi-Fi network → reset any custom IP or DNS settings. Keeping router firmware and Wi-Fi drivers updated helps avoid recurring “no internet after router reset” problems on phones, laptops, game consoles, and smart TVs.

Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your router model and ISP, please consult a verified expert on Whizz-Tech before making decisions.

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FAQ

Why is my device not connecting after router reset?

After a router factory reset, your Wi-Fi name, password, and security mode often change. Devices still try to use the old Wi-Fi profile, so they can’t authenticate or they get wrong IP/DNS settings. Forgetting the network on the device, reconnecting with the new password, and making sure the router’s WAN is connected usually solves it.

How do I fix “Wi-Fi connected but no internet” after resetting my router?

If every device shows Wi-Fi connected, no internet right after a reset, log in to the router and confirm it has a valid WAN IP address from your ISP and the correct connection type (DHCP, PPPoE, or static). Then turn Wi-Fi off and on on each device, and set IP and DNS to automatic so they get fresh settings from the router.

What lights should be on after a router reset?

On most home routers, you want a solid Power light, a solid or blinking Internet/WAN light, and activity lights for Wi-Fi (2.4 GHz / 5 GHz) and any active LAN ports. A red or amber Internet light after a reset can mean the router hasn’t finished its internet setup, even if Wi-Fi appears to work locally.

Should I reset my router or just reboot it?

Use a simple reboot first if you’re only dealing with temporary slowdowns or a one-time glitch. A factory reset wipes your Wi-Fi name, password, and ISP settings, which is why so many people end up with a device not connecting after router reset. Only reset if the router is badly misconfigured or instructed to by your ISP or manufacturer.

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