Mobile Data Working Slowly | UK Mobile Guide

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Why your mobile data speed is slow (Mobile Data Working Slowly)

Step	Action	What It Fixes
1	Check your network status	Confirms if issue is network-wide
2	Toggle aeroplane mode on/off	Re-registers SIM on your network
3	Restart your phone	Clears temporary network errors
4	Check your network APN settings	Fixes incorrect data configuration
5	Re-insert SIM card	Fixes poor SIM contact issues
6	Contact your network support	Resolves account or SIM faults

Using the correct settings is important for stable 4G and 5G performance. This Mobile Data Working Slowly | UK Mobile Guide article explains the complete process clearly.

When UK mobile configuration goes wrong, this covers signal and data issues too.

Whether it's no signal, sluggish data, hotspot trouble, a locked SIM, failed roaming or an APN error, the basics come first.

A reboot tends to restore the connection — wait about 30 seconds for it to settle.

Make sure the SIM is active and data/roaming toggles reflect the plan's real allowances.

Confirm the APN profile hasn't been altered and is correctly saved in mobile internet settings.

Following each adjustment, check MMS settings, hotspot, calls and mobile data.

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Troubleshooting checklist

Most connection problems resolve early — start at the top of this list

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Network-side causes of slow your network data (Mobile Data Working Slowly)

Review the APN profile under Mobile Network or Cellular Data, save, restart, and verify browsing, MMS and hotspot where the plan supports it.

Internal guides to check next

UK APN Settings Troubleshooting Why Is My Mobile Data Not Working How to Reset APN Settings What Are APN Settings APN Settings Explained What Is eSIM and How It Works How Roaming Works Back to full blog order

Frequently Asked Questions About Mobile Data Working Slowly

What is your network APN name?

Your network APN name is shown in the settings table above. On most your network SIMs in the UK, the APN is pre-configured automatically when you insert your SIM.

Why is my your network mobile data not working after entering the APN?

After entering your network APN settings, restart your phone to apply the changes. If data still does not work, check you have selected the correct APN and that your network plan includes mobile data.

Do I need to enter APN settings manually on your network?

Most your network devices configure APN settings automatically when you insert your SIM. You only need to enter them manually if your internet or MMS stops working after a factory reset or SIM swap.

What is your network MMS APN for picture messages?

Your network MMS APN settings are included in the table above. Make sure the MMSC, MMS Proxy and MMS Port values are entered exactly as shown.

Can I use the same APN settings for 4G and 5G on your network?

Yes, your network APN settings work for both 4G and 5G connections. You do not need a separate APN for 5G — the network upgrades automatically where 5G coverage is available.