Wi-Fi answers

Xbox Series X|S — smart-home gadget keeps going offline

Why does my Xbox Series X|S smart device keeps going offline?

The short answer

"Your NAT type is strict" — friends can't join, or party chat cuts out. On the WiFiXpert Compatibility Index the Xbox Series X|S scores 74/100, and its weakest check is "Works on a guest network" — which is exactly where this problem comes from. Multiplayer and party chat break on guest networks.

Check the Xbox Series X|S against your router

We publish what breaks with each router and mesh system, and the setting that fixes it.

Xbox Series X|S — WiFiXpert Compatibility Index, 74/100
CheckVerdictPoints
Works on 2.4 GHzSupported11/14
Works on 5 GHzExcellent14/14
Modern Wi-Fi securityGood11/12
Happy on mesh Wi-FiVery good14/16
Works on a guest networkPoor2/8
Survives a plug-in extenderNot recommended3/8
Doesn't depend on chatty discoveryLow dependency13/16
Easy to fix when it goes wrongMedium6/12

The short answer

  • "Your NAT type is strict" — friends can't join, or party chat cuts out.

What our compatibility data shows

  • Works on 2.4 GHz: Supported
  • Works on 5 GHz: Excellent
  • Modern Wi-Fi security: Good
  • Happy on mesh Wi-Fi: Very good
  • Works on a guest network: Poor
  • Survives a plug-in extender: Not recommended
  • Doesn't depend on chatty discovery: Low dependency
  • Easy to fix when it goes wrong: Medium

Free fixes, in order

  • Turn UPnP on in your router settings; it fixes most strict NAT messages.
  • Only one device should be doing the routing — if you have your own router behind the provider's hub, put one in modem mode.
  • Use a network cable to the console where you can; it removes half the variables.

Before you spend anything

  • A £10 long network cable beats any Wi-Fi upgrade for a console in a fixed spot.

People also ask

  • Does the Xbox Series X|S work on mesh Wi-Fi?
  • Can I put the Xbox Series X|S on a guest network?
  • Does the Xbox Series X|S need 2.4 GHz?
  • Which router works best with the Xbox Series X|S?

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.

  • Router or mesh known to suit this device
  • A single wired connection to the device

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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