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O2 Hotspot Connected But No Internet on Samsung

Last updated: June 2026 · O2 · Samsung

When devices connect to your Samsung's O2 hotspot but cannot browse, the problem is almost always with the phone's own mobile data — not the connected device. This guide shows you how to diagnose and fix O2 hotspot internet issues on Samsung.

In this guide
  1. Diagnose the issue
  2. Step-by-step fix
  3. Common causes
  4. Frequently asked questions

Fixing O2 Hotspot on Samsung

Test mobile data directly on your Samsung
Before touching hotspot settings: open a browser on your Samsung and load a website. If mobile data works on the Samsung itself, the problem is with the hotspot configuration, not the O2 connection.
Check mobile data is active
Hotspot shares your mobile data. Go to Settings → Connections → toggle Mobile Data and confirm it is enabled. Without active mobile data, the hotspot has no internet to share.
Restart the hotspot
Turn Personal Hotspot or Mobile Hotspot off, wait 15 seconds, then turn it back on. Reconnect the device that could not browse.
Disconnect and reconnect the device
On the device connecting to the hotspot, forget the network and reconnect from scratch. This clears any incorrect IP assignment.
Check O2 plan includes tethering
Some O2 plans limit or block tethering. Log into the O2 app and confirm your plan includes hotspot/tethering. Contact 202 (free from O2) to add it if needed.
Check APN settings
Go to Settings → Connections → Mobile Networks → Access Point Names and confirm APN reads: mobile.o2.co.uk. A wrong APN blocks mobile data even if signal shows full bars.
Reset network settings if all else fails
Go to Settings → General Management → Reset → Reset Network Settings. This clears all network config. After resetting, re-enter your hotspot password on connecting devices.

Common Causes of This Issue on O2

CauseLikelihoodFix
Mobile data off on phoneHighEnable mobile data first
Tethering not in planMediumCheck plan includes tethering
Wrong APNHighCorrect APN settings

Frequently Asked Questions

Why does my hotspot connect but show no internet?

The most common cause is that mobile data is not working on the Samsung itself. The hotspot only shares existing mobile data — it cannot create data if O2 mobile data is not active. Test data on the phone first.

Does O2 allow tethering on all plans?

Most O2 plans include tethering, but some budget plans restrict it. Check your O2 plan details in the app. If tethering is not included, you may need to upgrade or contact 202 (free from O2) to add it.

How many devices can connect to my Samsung hotspot?

Most Samsung devices support 5–10 simultaneous hotspot connections. Connecting many devices simultaneously divides your O2 mobile data allowance and can slow speeds for all connected devices.

Still having trouble? Contact O2 support on 202 (free from O2) or visit our contact page for further help.