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What causes an intermittent signal?
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Intermittent signal issues often show up as quick, occasional drops rather than a full outage. Here’s what can cause intermittent signal issues in your area and the steps that can help get things back on track
By Virgin Media Edit
- Published
- 20 March 2026
Key Takeaways
An intermittent signal happens when your internet connection drops in and out.
You might notice web pages taking longer to load, streaming services pausing to buffer, video calls freezing, or online games lagging or momentarily disconnecting.
If you've got Virgin Media at home, you can quickly check if there are any problems with your connection using our handy service status checker.
What happens when you've got an intermittent signal
An intermittent signal is when your internet connection briefly drops, weakens, or cuts in and out rather than failing completely. Instead of a stable, continuous connection, the signal fluctuates – working one moment and slowing or disconnecting the next.
With an intermittent signal, you might notice:
Web pages taking longer to load
Streaming services pausing to buffer
Video calls freezing or becoming pixelated
Online games lagging or momentarily disconnecting
Unlike a full outage (where there’s no internet connection at all and nothing can go online) an intermittent signal doesn’t stop working completely. Instead, the connection fluctuates, coming and going or slowing down unpredictably. This can lead to a range of short‑lived but noticeable issues, such as pages taking longer to load, streaming services pausing to buffer, or video calls momentarily freezing.
And although the connection eventually comes back each time, the repeated dips in performance can be just as frustrating as a complete loss of service, especially when you’re in the middle of something important.
What causes intermittent signal issues?
There are plenty of reasons why your connection might drop from time to time, from the setup in your home to issues on the network.
To help you narrow things down, here are some of the most common causes worth looking into:
One of the most common causes of an intermittent signal is weak or unstable Wi‑Fi. This can happen when the router is too far away, when thick walls or large pieces of furniture block the signal, or when other electronic devices cause interference. These obstacles can make the wireless connection fluctuate, leading to brief dropouts or slowdowns in your connection.
Not sure where your Hub should go? Check out our guide on where to put your Virgin Media Hub
Cables might not seem like a big deal, but if one is damaged or not plugged in properly, it can cause your connection to flicker. It usually won’t knock the internet out completely, but it can lead to those frustrating moments where things pause or slow down unexpectedly.
Busy times of day can also affect your connection. When lots of people around you are online – streaming, gaming, or working — the network can get overloaded. Your internet will still work, but you may notice it slowing down or stuttering as the network tries to keep up.
On some occasions, engineers might be carrying out planned maintenance to improve reliability, or there could be an unexpected fault they’re investigating in your area.
If you're with us, you can check if there are any connection issues in our area using our service status checker. There you can find out if there are any problems with your setup, or if there are wider connection issues in your area.
How to tell if it's your area or your setup
An intermittent signal could be due to a network issue in your area or something closer to home.
Here’s some steps you can take to identify and help fix intermittent signal issues:
1. Give the Virgin Media Hub a quick reboot
Our Hub works hard to keep you connected, and sometimes it just needs a quick refresh. Switching it off at the wall for 10–20 seconds, then turning it back on, can clear temporary glitches and reconnect you to the network with a clean signal. It’s one of the simplest ways to fix short‑term dropouts.
2. Check your cables are secure
Loose or damaged cables are sometimes a cause of intermittent signal issues. Make sure the white coaxial cable is firmly screwed in at both ends and that all power and Ethernet cables are properly connected. If you think your cable may be damaged, get in touch with us.
3. Move the Hub for a stronger WiFi signal
Our Hub works best when it’s out in the open. If it’s hidden behind the TV, stuck in a cupboard or surrounded by thick walls, your WiFi signal can dip. Try placing it in a central, raised spot away from devices like microwaves, cordless phones or baby monitors. A better position often means a more stable connection in every room.
Not sure where your Hub should go? Check out our guide on where to put your Virgin Media Hub.
4. Reduce WiFi congestion in busy households
If lots of devices are streaming, gaming or downloading at the same time, your WiFi may not be able to keep up. Disconnect anything you’re not using, or plug high‑demand devices (like TVs, consoles or laptops) directly into the Hub with an Ethernet cable for a steadier connection. This helps keep your WiFi free for everything else.
5. Check if there’s a local issue in your area
You can check the service status for your postcode to see if there’s an issue we’re already fixing.
Start by checking the Virgin Media Service Status checker or the My Virgin Media app. Enter your postcode, and it’ll tell you if there’s a known issue nearby. If there is, there’s nothing you need to do: engineers will already be working on it, and your connection should return to normal soon.
Still having issues?
If you’ve done the checks, visited the Service Status page, restarted the Hub, confirmed there’s no area fault, and your connection is still behaving like it’s got something to prove, it might be time to contact us.
Call us on 150 from your Virgin Media phone or mobile, or 0345 454 1111 from any other phone.
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