- A fault is a failure of the service to work as it should, such as total loss of connection or a speed below the guaranteed minimum.
- A performance issue, such as evening slowdown within your guaranteed speed, may not count as a formal fault.
- Intermittent faults are real but harder to evidence, which is why a fault log matters.
- How a provider classifies the problem affects repair timescales and compensation.
"My broadband is faulty" can mean many things, and the precise nature of the problem determines your rights. A total outage, a connection that keeps dropping, and a connection that is simply slower than you hoped are treated differently. Understanding what counts as a fault, and what does not, helps you frame the problem in a way that triggers the right response.
Fault versus performance issue
A fault is a failure of the service to work as it should: a total loss of connection, a line that repeatedly drops, or a speed consistently below your minimum guaranteed level. A performance issue is different, for example, an evening slowdown that still keeps you above your guaranteed speed is the network behaving as expected under contention, not a fault. The distinction matters because faults trigger repair obligations and, in some cases, compensation, while normal performance variation does not.
Types of fault
Total loss of service is the clearest fault and the one the automatic compensation scheme directly addresses. A speed persistently below your minimum guaranteed speed is a fault under the Speeds Code, giving you repair and potentially exit rights. Intermittent faults, where the connection drops in and out, are genuinely faults but are harder to prove because they are not constant, which is exactly why keeping a log of when they occur is so important.
How providers classify faults
Providers categorise reported problems to decide how to handle them, distinguishing total loss from degraded performance, and a network-side fault from one in your own equipment or wiring. This classification affects the repair timescale and whether compensation applies. Using the test socket to rule out your internal wiring, and reporting clearly, helps ensure the problem is classified correctly rather than dismissed.
Fault types and classification
| Problem | Usually a fault? |
|---|---|
| Total loss of service | Yes, clear fault |
| Speed below guaranteed minimum | Yes, under the Speeds Code |
| Intermittent drop-outs | Yes, but needs evidence |
| Evening slowdown within guarantee | Usually normal contention |
Getting it acknowledged
When you report a problem, your provider should acknowledge and investigate a genuine fault. Frame it accurately, total loss, below-guarantee speed, or intermittent drops with a log, so it is classified correctly. If the provider wrongly dismisses a genuine fault as normal performance, that itself is something to challenge through a complaint, backed by your evidence.
Frequently asked questions
What is a broadband fault?
A fault is a failure of the service to work as it should, such as a total loss of connection, a line that repeatedly drops, or a speed consistently below your minimum guaranteed level. Faults trigger repair obligations and, in some cases, compensation.
Is slow broadband a fault?
It depends. A speed persistently below your minimum guaranteed speed is a fault under the Speeds Code. But an evening slowdown that still keeps you above your guaranteed speed is usually normal contention rather than a fault, so the guaranteed-speed benchmark is what matters.
What is an intermittent broadband fault?
It is a fault where the connection drops in and out rather than failing completely or constantly. It is a genuine fault, but harder to prove because it is not continuous, which is why keeping a log of when the drops occur is important for getting it addressed.
Does my ISP have to acknowledge my fault report?
A provider should acknowledge and investigate a genuine fault. Framing it accurately, total loss, below-guarantee speed, or intermittent drops with a log, helps ensure correct classification. If a real fault is wrongly dismissed as normal performance, you can challenge that through a complaint.
How is a broadband fault different from poor performance?
A fault is a failure of the service to work as it should and triggers repair obligations. Poor performance, such as a slowdown that still stays above your guaranteed speed, is the network behaving as expected under load. The minimum guaranteed speed is the line between the two.
