It is 9am on a Monday, the team is logging on, and nothing works. The shared drive will not load, the phones are silent and the card terminal has frozen. Nobody has been hacked. A breaker tripped in the comms cupboard over the weekend, or the building’s power was switched off for maintenance and nobody told IT.
Most businesses now invest seriously in software, cloud services and cyber security. Those matter, but they all sit on top of something physical: power, cooling, cabling and the room the equipment lives in. When that layer fails, even the best firewall will not keep the business running.
The cost of getting it wrong can be considerable. In Uptime Institute research reported by Data Center Knowledge, more than half of operators said their most recent significant outage cost over $100,000, and one in five put the figure above $1 million. Those numbers come from data centres, but the lesson applies to any business that relies on its own servers, network equipment or connectivity.
Here are five infrastructure weaknesses that can quietly leave a business exposed, and why each one deserves attention.
1. Unreliable Power and Little or No Backup
Power is the foundation everything else depends on. Uptime Institute’s Annual Outage Analysis 2025, covered by Computer Weekly, found that power problems were behind 54% of the most recent impactful outages its respondents reported.
For a typical business, the risk rarely looks dramatic. It might be a short local outage, a fault in the building, or a planned shutdown while the landlord upgrades the electrics or contractors carry out building work. Servers can shut down without saving data, phone systems drop out, and door entry or alarm systems may stop working until the supply returns.
The first step is knowing what would happen if the usual supply were unavailable. BCP Council advises businesses to review their continuity plans with the loss of utilities in mind, and lists planned maintenance outages among the causes. Under the rules explained by Citizens Advice, electricity network operators only have to give two days’ notice before switching off the supply for planned work, which leaves little time to prepare unless someone is watching for it. An uninterruptible power supply (UPS) can bridge a short gap and allow a safe shutdown, though it is not built to run equipment for hours. For longer planned shutdowns or building work, temporary generators are another option, and suppliers such as wbpsltd.co.uk/hire/ provide hire units for short-term requirements. Whichever route a business takes, backup equipment needs regular testing, because a tired UPS battery is easy to forget until the day it is needed.
Power is also worth adding to any relocation plan, alongside the other points in this business risk checklist for moving into a new office.
2. Weak or Single-Route Network Connectivity
Many businesses run everything through one internet connection. If that line goes down, cloud applications, email, internet phones, payment systems and remote access can all stop at once.
According to Network World, the same Uptime research found that configuration and change management problems were the most common cause of major network-related outages, cited in half of cases, while failures at third-party network providers accounted for around a third. In other words, many network outages come from changes made internally or from a single supplier the business depends on.
Inside the office, a “flat” network adds a further risk. When every laptop, printer, server and smart device shares one open network, a single faulty or compromised device can affect everything else. Practical improvements include:
- dividing the network so critical systems sit separately
- recording every configuration change
- adding a second connection from a different provider, even if it is only a mobile broadband backup
3. Inadequate Cooling for Critical Equipment
Servers, switches and storage devices produce heat around the clock. In smaller businesses, they often sit in a cupboard or a corner of the office, cooled by air conditioning that was designed for people and may switch off in the evenings and at weekends.
The Uptime analysis mentioned above identified cooling as the next most common cause of outages after power, with 13% of respondents experiencing one. When equipment overheats, it may slow down, shut itself off or wear out early, and heat damage can appear weeks later as faults that are hard to trace.
Power and cooling are closely linked here. After an outage, IT equipment may come back on while the air conditioning does not. Dedicated cooling for comms rooms, temperature sensors that send alerts, clear airflow around racks and a rule that the server cupboard is not used for storage all reduce the risk.
4. Gaps in Physical Security Around Key Equipment
Cyber security receives most of the attention, but someone with access to the comms room can unplug, remove or tamper with equipment in seconds. Common gaps include:
- unlocked cupboards
- door codes that never change
- former employees who still hold access fobs
- contractors left unsupervised near critical kit
The Information Commissioner’s Office recommends that organisations:
- keep a record of who has physical access
- remove access as part of every leaver’s checklist
- monitor visitor access
- log access to secure areas such as server rooms
Measures like CCTV and controlled entry, outlined in these security measures every business should have in place, help protect infrastructure as well as people and stock.
5. Ageing and Poorly Maintained Infrastructure
Infrastructure rarely fails without warning. The trouble is that nobody is looking for the signs. UPS batteries lose capacity, routers and switches reach the end of their support, and backup routines run for years without anyone checking that the data can be restored.
The National Cyber Security Centre warns that obsolete products stop receiving security updates, leaving them open to attack by relatively low-skilled attackers over time, and advises considering a product’s support lifetime before buying.
A simple asset register helps. It should list every device, when it was bought, when its support ends and who is responsible for it. It also brings to light forgotten equipment and devices staff have added without IT’s knowledge. Pair it with scheduled maintenance and occasional restore tests. A backup that has never been restored is an assumption rather than a plan.
How One Failure Can Affect Several Systems
These problems rarely stay in one place. A single weak point can take out several systems at once:
| Infrastructure failure | What can stop working | Business impact |
|---|---|---|
| Power loss | Servers, network switches, phones, card terminals, door entry | Staff unable to work, lost sales, risk of data loss |
| Cooling failure | Servers and storage shut down or degrade | Shared files and business applications unavailable |
| Internet connection drops | Cloud apps, email, internet phones, remote access | Customer service and remote teams cut off |
| Unauthorised physical access | Any equipment in the room | Downtime plus a possible data breach |
| Ageing equipment fails | Whatever relied on that device | Unplanned replacement costs and downtime |
To decide where to start, list the systems the business cannot operate without. Then trace each one back to the physical infrastructure it relies on. Power usually comes first because everything depends on it, followed by connectivity.
Making Sure Monday Morning Does Not Start in the Dark
None of these weaknesses is unusual, and most stay hidden until the day they cause a problem. The encouraging part is that they are largely preventable. In the same Uptime research, 80% of operators believed better management and processes would have prevented their most recent outage. A clear view of what the business depends on, a plan for when the usual power or connection is unavailable, and regular checks on ageing equipment can make the difference between a minor inconvenience and a lost week.
