11/06/2026
A client called us last year. Tuesday morning. Whole office down.
Primary leased line had failed overnight. Nobody noticed until staff arrived and nothing worked.
They called their ISP. Fault logged. Engineer booked.
Estimated resolution: up to 48 hours.
Forty-eight hours!!
For a business turning over £4 million a year, that is not a minor inconvenience. That is a crisis with a very predictable price tag.
The frustrating part is we could see exactly what was missing within ten minutes of looking at their setup.
One leased line. One router. One path to the internet.
No secondary connection. No failover. No high availability on the core devices. A UPS that had never been tested and turned out to have a failed battery cell.
Everything hung off one thread. The thread broke.
On a properly built network, here is what Tuesday morning looks like instead.
Primary link drops at 2am. The router detects it in under three seconds. Traffic automatically reroutes to the secondary connection. An alert fires to the IT team.
Staff arrive at 9am and nothing is wrong. The ISP fixes the primary in the background.
Zero impact. Zero downtime. Nobody rings anyone in a panic.
The difference between those two outcomes is not complicated engineering. It is a secondary connection, a redundant firewall pair, and a tested failover configuration.
The infographic breaks down all three layers of network resilience properly. Connection redundancy, routing and switching redundancy, and power redundancy. What enterprise looks like versus what most medium businesses actually have.
If your answer to "what happens when the main connection goes down" is still "we ring the ISP and wait", it is worth having a proper conversation about what a resilient setup looks like for your size of business.
DM us and we can start there.