Find the extender model and its saved network
Read the label and open the matching TP-Link support guide. If only the router password changed, use the extender's management page or app to update the saved credentials; a full reset may not be needed.
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Guide
How to Connect TP-Link Extender to New WiFi After a Router Change
When your router name or password changes, update the extender's saved network details. The exact reset and configuration steps depend on its model.
Reconnect through the setup interface
Join the extender's WiFi from a phone or computer, then open the address in its manual or launch the supported TP-Link app. Choose the new router network and enter the current password carefully.
When to reset and start again
If the extender is inaccessible or still tied to the old router, use the reset control as described in its model manual, then run setup again. A reset clears saved settings, so have the new network details ready.
Choose the new WiFi band
If your router shows separate network names for its bands, select the band the extender supports and that suits your coverage goal. Some models combine band selection under one network name.
Check the link before moving it
Wait for the extender's connection indicator to confirm a link to the new router. Test a device on the extended network, then position the unit where it still receives a dependable signal.
Extender or a new router?
A booster can address weak signal in part of a home when the router itself is functioning well. If the router is unreliable, outdated or unable to cover the home even nearby, replacing it or considering mesh may solve the underlying issue.
Common questions
Questions before you buy
Do I need to reset my TP-Link extender when changing WiFi routers?
Not always. If you can access its management interface, update the saved network details there; reset only when the model's instructions or your troubleshooting requires a fresh setup.
How do I change the WiFi network saved on a TP-Link extender?
Open the extender's supported app or web interface, select the new router network and enter its current password. Menu names differ across models.
Why will my TP-Link extender not find the new router?
Check that the router is broadcasting a supported band and that the extender is close enough during setup. Consult the model guide for compatibility and reset instructions.
Should I buy a WiFi booster or a new router?
Choose a booster for a local coverage gap with a healthy router connection. Consider a replacement router if the existing router causes dropouts or poor performance throughout the home.
Sources and how we chose
- TP-Link Australia, Range Extender support · 2026-10-18
- TP-Link, RE305 quick installation guide · 2026-10-18
Keep exploring
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