Internet, Wi-Fi and broadband guides
Detailed, independently reviewed guidance that begins with free comparisons and recommends equipment only where it addresses a diagnosed problem.
Find the cause before changing the hardware
A slow or unreliable connection may be caused by the device, Wi-Fi coverage, local traffic, DNS, the broadband access line, provider routing or the service being used. Each guide explains the evidence that separates those possibilities, what a browser test can and cannot prove, and when an equipment category is genuinely relevant.
Start with the global speed guidance to understand how much capacity an activity needs, why tests disagree and whether loaded latency explains a fast-but-laggy connection. UK provider rights and complaints remain in a separate regional guide rather than being presented as worldwide rules.
Guides are written in English, show a review date and link to authoritative material where a rule or technical claim needs supporting context. LumaProbe does not invent live outage data, product tests or professional credentials.
How to fix slow Wi-Fi without guessing
A controlled way to separate broadband, coverage, interference and device problems before changing equipment.
Read guide →Buying guideRouter and mesh Wi-Fi buying guide
Choose a router, access point or mesh system from diagnosed coverage, port and support needs—not headline speed.
Read guide →NetworkingEthernet cables and network switches explained
A practical guide to Cat 5e, Cat 6, link speeds, switches, adapters and wired backhaul for home networks.
Read guide →GamingHow to reduce gaming ping, jitter and connection drops
Diagnose local Wi-Fi, busy-line queueing and route problems without chasing misleading “gaming speed” claims.
Read guide →ReliabilityBuild a reliable work-from-home connection
Improve calls and remote access, separate work and home faults, and prepare a realistic fallback before an important meeting.
Read guide →UK consumer guideUK broadband speeds, evidence and provider complaints
Understand contract speed information, document a persistent fault and use the provider complaint and ADR process under current UK rules.
Read guide →DNSDNS problems explained and safely troubleshot
Understand resolvers, caches, records and propagation, then distinguish a DNS fault from a wider connection or website problem.
Read guide →StreamingStop streaming buffering by finding the real bottleneck
Separate service, device, Wi-Fi, capacity and latency problems before changing a television or broadband package.
Read guide →Speed explainedWhat internet speed do I need?
Choose a realistic download, upload and responsiveness target from the people, devices and activities sharing your connection.
Read guide →Testing accuracyWhy speed-test results vary
Understand how server distance, Wi-Fi, other traffic, devices and test design create different but potentially valid results.
Read guide →ResponsivenessLoaded latency and bufferbloat explained
Find out why a fast connection can lag under load, how to read idle and loaded latency, and which comparisons identify queueing.
Read guide →