How to Use a Router as a WiFi Extender

A spare router can extend coverage only if its firmware supports a compatible repeater or bridge mode. When available, wired access-point mode is often easier to configure and troubleshoot.

GGearjury editorial team · Updated 18 October 2026· 5 min

Check whether the spare router supports repeater mode

Look in the manual or administration interface for wireless repeater, bridge or range-extender mode. A router that only offers access-point mode cannot repeat WiFi wirelessly without a cable back to the main router.

Update firmware and note the current network settings

Use only firmware intended for the exact router model and hardware revision. Record how to restore the device if configuration fails, and avoid changing the main router’s settings unless required.

Choose wireless repeater or wired access-point mode

If supported, repeater mode joins the main router over WiFi. Access-point mode uses Ethernet from the main router and creates local WiFi at the second router. Follow the manufacturer instructions for IP addressing and DHCP so two routers do not compete to assign addresses.

Match security and network settings

Select the correct main WiFi network and enter its password. Use compatible security settings and a clear network name where roaming behaviour is uncertain. Do not disable security to force pairing.

Place and test the second router

For wireless repeating, choose a location that still receives a healthy signal from the main router. For access-point mode, connect Ethernet and place the unit where coverage is needed. Test the far room and confirm devices receive an IP address and internet access.

Can a Sky Q Mini Box act as a WiFi booster?

A Sky Q Mini Box is a television viewing device, not a general-purpose WiFi extender. Sky Q equipment may participate in Sky’s own network arrangements, but use Sky’s support guidance for that exact system rather than configuring the box as a universal router repeater.

Common questions

Questions before you buy

Can I use any router as a WiFi extender?

No. The router firmware must support wireless repeater or bridge mode to connect without Ethernet. Many routers instead offer access-point mode, which needs a cable back to the main router.

How do I use a router as a WiFi extender with Ethernet?

Configure the spare router as an access point, connect it to the main router by Ethernet and follow the vendor’s instructions for DHCP and network settings.

How to use Sky Mini Box as WiFi booster?

A Sky Q Mini Box is not a general-purpose WiFi booster. Follow Sky’s guidance for its own Q network and use a dedicated access point or extender for wider household coverage.

Will using a second router create a different WiFi name?

It can. Some systems allow the same network name, while others work more predictably with a distinct name. Follow both router manuals and test roaming in your home.

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