Struggling with no signal, dropped calls, or poor call quality? This guide explains the common causes of signal problems, what you can do to fix them, and where to check for known network issues.

Why signal problems happen

If your device shows No Service or has poor reception, it could be caused by:

• Temporary network faults or maintenance
• Indoor obstructions (walls, insulation, tinted glass)
• Outdoor obstacles (buildings, trees, hills)
• Being on the edge of coverage areas
• Device or SIM issues
• Out-of-date software or settings

Poor call quality

Even with good signal, call quality may drop due to congestion or interference. To improve things:

• Move to a different location with fewer obstructions
• Try calling at another time when the network is less busy
• Restart your device
• Update your phone software to match network upgrades

Indoor signal problems

Buildings often block mobile signals. To improve indoor coverage:

• Use Wi-Fi Calling (if your device supports it)
• Place your phone near a window or open space
• Reduce interference from other electronic devices

Outdoor signal problems

Signal outdoors can vary depending on your distance from the nearest mast or obstacles nearby. Try moving to a more open area.

If issues continue, use the coverage checkers below to see if there’s a fault in your area.

Check network status

Search your postcode to see if there are known outages or maintenance:

• O2 Network status
• EE Network coverage (plan.com)
• Ofcom mobile checker (all UK networks)

Steps to troubleshoot

1. Restart your device.
2. Complete a manual network selection – follow this guide.
3. Test your SIM card in another device (if available).
4. If you connect via the O2 network, you may need to update your APN settings – see the APN settings guide.

If you’re still experiencing issues, raise a support request through your my.plan account so we can investigate further.