Use the table as a decision point. If the problem only appears away from the router, do not treat it as proof that your ISP is down.

What not to do yet

Do not buy a Wi-Fi extender first.

An extender may help in some homes, but it can also repeat a weak signal if placed in the wrong spot. First prove where the signal becomes weak.

Do not put a mesh node inside the dead zone.

A mesh node still needs a good connection back to the main router. Put it closer to the healthy-signal area, not in the worst room.

Do not factory reset the router first.

A reset can erase your Wi-Fi name, password, router admin settings, provider settings, PPPoE login, VLAN settings, IPTV settings, or other ISP-specific configuration.

Do not assume 2.4 GHz is always better.

It can reach farther through some obstacles, but it can also be slower or more crowded. Test it instead of treating it as a universal fix.

Do not change many router settings at once.

Changing band names, channels, security mode, transmit power, and router mode together can hide the real cause.

When to contact your provider

Contact your ISP or internet provider when the issue no longer looks like a room-level Wi-Fi problem.

Good reasons to contact them include:

• Wi-Fi is poor even beside the router.

• Ethernet is also slow or unstable.

• All rooms and all devices are affected.

• The modem, gateway, or ONT does not reach its normal online state.

• Your router Internet light is off, red, or showing a service problem.

• Your provider outage page shows a local problem.

• Restarting the modem or ONT first and the router second does not restore service.

Tell the provider what you tested. Say whether Wi-Fi works near the router, whether Ethernet works, and whether the issue happens in only one room or across the whole home.

Related HomeNetCompass guides

If the weak room is a dead zone, use the dead zones and weak signal spots guide.

If the whole Wi-Fi network is slow, use the broader guide on why your Wi-Fi is slow overall.

If you can test with a cable and want to understand what Ethernet proves, use the Ethernet vs Wi-Fi guide.

FAQ

Why does Wi-Fi work near the router but not in another room?

It usually means the wireless signal is getting too weak before it reaches that room. Distance, walls, floors, mirrors, metal, appliances, router placement, and band choice can all affect the connection.

Is this an ISP problem?

Usually not if Wi-Fi works well near the router and Ethernet is stable. It becomes more likely to involve the ISP if the connection is bad beside the router, bad on Ethernet, or bad across the whole home.

Should I use 2.4 GHz or 5 GHz in the far room?

Test both if your router shows separate Wi-Fi names. 2.4 GHz may work better through distance and walls, but it can also be crowded. 5 GHz is often faster nearby but may weaken sooner through obstacles.

Should I buy a Wi-Fi extender?

Not first. Test the room, compare devices, move the router if possible, remove obstructions, and check band choice before buying anything. If you later use an extender or mesh node, place it where the signal is still usable.

Why does my phone lose Wi-Fi in that room but my laptop works?

The phone may have a weaker Wi-Fi radio, fewer antennas, a case that affects reception, or different band behavior. Compare devices in the same room before blaming the router.

Final takeaway

Wi-Fi that works near the router but not in another room is usually a coverage, placement, wall, interference, band, or device issue.

Test the same device beside the router and in the bad room. Then compare another device in that room. Move the router to a central open spot if possible, test another band, and keep mesh nodes out of the dead zone.

Do not reset the router or buy hardware until those checks are done.

Disclaimer