What to do if…
your home Wi-Fi name or password appears changed and your devices disconnect
Short answer
Assume your router may have been accessed: regain control of the router (factory reset if needed), then change the router admin login and Wi-Fi password and disable remote management before you reconnect everything.
Do not do these things
- Don’t log into banking, email, or work systems on that Wi-Fi until the router is secured.
- Don’t only change the Wi-Fi password and stop there (if the router admin login is compromised, it can be changed again).
- Don’t enable remote access/remote administration “to fix it” unless you’re confident you can secure it.
- Don’t reuse an old or easy password.
- Don’t keep retrying old passwords repeatedly (it wastes time and can trigger lockouts on some devices/accounts).
What to do now
-
Confirm you’re looking at your router’s network.
Check the router label and any ISP app/portal for the expected network name and admin access method. If possible, use an Ethernet cable for one device for setup. -
Power cycle once to rule out a glitch.
Unplug router power for 20–30 seconds, plug back in. If the network still looks “wrong,” proceed as if settings were changed. -
Factory reset the router to clear unknown configuration.
Use the reset pinhole/button following your model’s instructions. Many routers reset if you hold the button until the lights change and the unit restarts. -
Immediately change the router admin credentials (not just Wi-Fi).
Log into the router admin interface/app and set a strong, unique admin password (and change the admin username if possible). If the router supports MFA for admin access, enable it. -
Update router firmware (or enable automatic updates).
Do this before reconnecting your full household. If the router is end-of-life or no longer gets updates, plan to replace it. -
Review the settings attackers commonly change and revert anything unfamiliar.
In router settings, check and fix:- DNS settings (set to automatic/ISP unless you intentionally use a custom DNS)
- Port forwarding rules you didn’t create
- UPnP (turn off if you don’t need it)
- Remote management/remote administration (turn off unless you explicitly need it)
- Guest network settings (turn off if you don’t use it; set a separate strong password if you do)
-
Recreate your Wi-Fi with secure settings.
- Use WPA3 if available; otherwise WPA2.
- Set a long, unique passphrase.
- Avoid personal info in the network name.
-
Reconnect devices slowly and check the connected-device list.
If you see anything you don’t recognize, remove/block it and change the Wi-Fi password again. -
Lock down the accounts that could have enabled the change.
- Change the password to your ISP account (the portal/app that can manage the router) and enable MFA if offered.
- Update your computer/phone and run a malware scan on the device you use to manage the router.
- If you reused the old Wi-Fi password anywhere else, change those logins too.
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If there’s financial loss or identity risk, report it using official channels.
- For cyber-enabled scams and many online crimes, you can file a report with the FBI’s IC3.
- If identity theft is involved, report and get recovery steps via IdentityTheft.gov (FTC).
- For other fraud/scams, you can also report via ReportFraud.ftc.gov.
What can wait
- You don’t need to determine exactly how it happened right now.
- You don’t need to replace all devices immediately (start with router + key accounts).
- You don’t need to reorganize your whole smart home today—stabilize connectivity and security first.
- You can do deeper cleanup (password manager, separating IoT/guest networks) after the immediate risk is reduced.
Important reassurance
A sudden SSID/password change feels invasive, but the practical fix is usually straightforward: reset, update, and secure the router admin access. Doing those steps first greatly reduces the chance it happens again.
Scope note
This covers the first steps to regain control and reduce immediate risk. If you have a complex network (mesh nodes, custom firewall rules, work VPN appliances), you may need model-specific support after you stabilize the router.
Important note
This is general information, not a guarantee that you were hacked or that these steps will resolve every cause (some outages are provider or hardware issues). If you’re unsure, it’s reasonable to contact your ISP for help securing or replacing the router.