Wi-Fi answers

Community Fibre — fast by the router, slow upstairs

Community Fibre: why is my Wi-Fi fast next to the router but slow upstairs?

The short answer

If the speed next to the router is close to what you pay for, the broadband is delivering. What you are seeing upstairs is coverage: the fast band does not get through floors and walls as well as the slow one, so the far end of the house falls back to a weaker connection.

Check your home score

Tells you where the weak areas will be from your walls, floors and router position.

Community Fibre — the facts we hold, checked 17 August 2026
ItemWhat we have on record
Wi-Fi support tierBasic router
WiFiXpert Experience Score35/100
Their own Wi-Fi appNo / very limited
Official help pagehttps://help.communityfibre.co.uk/
Service status pagehttps://communityfibre.co.uk/service-status

The short answer

  • If the speed next to the router is close to what you pay for, the broadband is delivering. What you are seeing upstairs is coverage: the fast band does not get through floors and walls as well as the slow one, so the far end of the house falls back to a weaker connection.

Is it the line or the Wi-Fi?

  • Test wired next to the router
  • Test in the room that struggles
  • Write both numbers down with the time

Free things to try first

  • Test in both places and write the numbers down — Same device, same time of day. That pair of numbers is the evidence.
  • Move the router towards the middle of the house — A router in a hallway cupboard by the front door loses half the house.

Where Community Fibre fits in

  • Community Fibre is a "Basic router" provider in our comparison, scoring 35/100 for the Wi-Fi support they actually give you.
  • Fast line, but the Wi-Fi is handed to the Linksys app — nothing from Community Fibre to manage or measure it.
  • Take dated evidence with you — it changes how the call goes.

If it is not fixed

  • Ask for a formal complaint reference
  • Six weeks unresolved, or a deadlock letter, opens the free independent route

People also ask

  • Is this a Community Fibre fault or my Wi-Fi?
  • How do I report this to Community Fibre?
  • Will a Community Fibre engineer visit help?
  • Can I use my own router with Community Fibre?

If you do end up spending money

Only after the free fixes. Nobody pays to appear here, and no shop link changes anything we say.

  • Mesh or a wired second point — only after the free fixes
  • Managed Wi-Fi, where the provider owns the fix instead of you

Where this comes from

Related pages

Written by The WiFiXpert engineering teamUK Wi-Fi engineers, giq.ai Ltd.

Edited by WiFiXpert editorial desk.

Last reviewed 9 September 2026. Reviewed every 6 months, or sooner when a manufacturer or provider changes something.

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