Wi-Fi answers

Connexin — fast by the router, slow upstairs

Connexin: 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.

Connexin — the facts we hold, checked 17 August 2026
ItemWhat we have on record
Wi-Fi support tierSupported Wi-Fi
WiFiXpert Experience Score73/100
Their own Wi-Fi appYes
Official help pagehttps://www.connexin.co.uk/support
Service status pagehttps://www.connexin.co.uk/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 Connexin fits in

  • Connexin is a "Supported Wi-Fi" provider in our comparison, scoring 73/100 for the Wi-Fi support they actually give you.
  • Connexin Home is their own Wi-Fi app: guest networks, profiles, device lists and parental controls, with support that can see your setup.
  • 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 Connexin fault or my Wi-Fi?
  • How do I report this to Connexin?
  • Will a Connexin engineer visit help?
  • Can I use my own router with Connexin?

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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