Network Troubleshooting in London

When your London network is not working properly, you need engineers who can diagnose the root cause quickly and fix it permanently — not just apply a temporary patch.

Rapid Diagnosis

Our engineers use advanced diagnostic tools to pinpoint the root cause of network issues quickly, saving you hours of frustration.

Permanent Fixes

We do not just restart devices and hope. We identify the underlying problem and implement a lasting solution every time.

Remote & On-Site

Many issues can be resolved remotely within minutes. When hands-on work is needed, our London engineers are on-site fast.

Solving Network Problems at the Root

Intermittent connectivity, slow speeds, dropped VoIP calls and mysterious outages all have causes that can be identified and fixed. The difference between a quick workaround and a permanent resolution is having engineers who understand networks deeply. Cloudswitched brings that expertise to London businesses, resolving issues efficiently and preventing them from returning.

Our Troubleshooting Approach

Systematic Methodology

We follow a structured troubleshooting methodology — isolate, test, diagnose, fix, verify. This ensures nothing is missed and the real cause is addressed.

Advanced Tooling

Packet captures, protocol analysis, cable testing and traffic flow inspection — we use professional tools to see exactly what is happening on your network.

Root Cause Reports

After resolution, you receive a clear report explaining what went wrong, what we did to fix it and what to watch for in the future.

Are network issues disrupting your team?

Common Issues We Resolve

Intermittent connectivity and dropouts
Slow network speeds and high latency
VoIP quality problems and call drops
Security breaches and unusual traffic
DNS and DHCP failures
Switch and router misconfigurations

Diagnostic Capabilities

Our engineers have the tools and expertise to get to the bottom of any network problem quickly.

01

Packet Analysis

Deep packet inspection using Wireshark to analyse traffic flows, identify malformed packets and pinpoint protocol errors.

02

Cable Testing

Fluke cable testers verify physical layer integrity — detecting faults, incorrect terminations and cable degradation.

03

Bandwidth Analysis

Traffic flow analysis to identify bandwidth hogs, broadcast storms and congestion points affecting performance.

04

Configuration Audit

Line-by-line review of switch, router and firewall configurations to find misconfigurations causing issues.

05

Security Investigation

Analysis of unusual traffic patterns, compromised devices and unauthorised access attempts on your network.

06

ISP Liaison

We work directly with your internet provider to diagnose and resolve WAN-side issues, saving you the hassle.

Frequently Asked Questions

For critical outages, we aim to begin remote diagnosis within 30 minutes. On-site visits in London are typically available same-day or next business day depending on severity.

Yes. We regularly troubleshoot networks built by other providers. We start by gathering information about your environment and then systematically work through the issue.

We will identify whether the issue is internal or ISP-related, then provide evidence and liaise with your provider on your behalf to get it resolved quickly.

Absolutely. Many clients move onto a managed support plan after we resolve an initial problem, giving them peace of mind that future issues will be handled promptly.

Every fix includes a root cause analysis and recommendations. Where appropriate, we implement monitoring to detect early warning signs and prevent recurrence.

Technology Stack

Powered by industry-leading technologies including SolarWinds, Cloudflare, BitDefender, AWS, Microsoft Azure, and Cisco Meraki to deliver secure, scalable, and reliable IT solutions.

SolarWinds
Cloudflare
BitDefender
AWS
Hono
Opus
Office 365
Microsoft
Cisco Meraki
Microsoft Azure

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Thank you for getting in touch. A member of our team will review your enquiry and get back to you within 24 hours.