The failure of a major fixed-wireless supplier is more than a procurement problem. For African ISPs already squeezed by currency weakness, spectrum costs, thin margins and aggressive competition from mobile operators, it could alter the economics of broadband deployment.

Cambium Networks’ fall into administration would be a significant event in any telecom market. In Africa, it may be a death knell for many providers.

The company’s equipment became popular because it solved a distinctly African network problem: how to extend broadband across large areas without laying fibre everywhere. Cambium’s point-to-point and point-to-multipoint systems allowed operators to reach communities, enterprises and suburban markets over long distances, often with fewer sites than would otherwise have been required.

In Africa, every additional site brings more than the cost of a radio. It can mean tower or rooftop rent, backhaul, batteries, solar, generators, security, maintenance and technicians.

Cambium’s main UK trading entity entered administration on 14 September, days after the company cut 260 employees, or 53.6% of its global workforce. Its administrators said they would seek buyers for its assets and business lines, while remaining entities could ultimately be wound down. 

Airspan has since acquired some of Cambium’s most important fixed-wireless businesses, including PMP 450, PTP 670, PTP 700, cnWave and cnReach, along with associated management and planning tools. More than 135 Cambium employees moved with the businesses. 

That transaction gives many operators some protection. But crucially, it does not cover everything.

Cambium’s ePMP business — one of the product families widely used by wireless ISPs — was not included in the Airspan deal and remained subject to efforts to find another buyer. Cambium also said cnMaestro cloud support would continue only through at least October while the restructuring continued.

Why Cambium worked so well in Africa

Cambium built its reputation around range, interference management and the ability to support large numbers of subscribers from relatively few sites.

Its ePMP 3000 access point, for example, can support more than 120 subscriber modules, while the wider ePMP platform was designed around frequency reuse, synchronisation and interference mitigation — precisely the features that become important when an ISP grows beyond a small wireless network. Cambium therefore sat in an important space between low-cost wireless equipment and much more expensive carrier infrastructure.

Its products were deployed by operators including Orange Cameroon and Muni SA in Equatorial Guinea, while Cambium equipment has also been used extensively by African fixed-wireless ISPs. 

The attraction was economic as much as technical.

An ISP that can serve a wide area from one tower has a very different cost structure from an operator that needs another base station every few kilometres.

That is where Cambium’s troubles could begin to affect competition.

The problem is not replacing a radio

The simple interpretation is that operators will switch to another vendor.

The real problem is what happens to network density when they do.

Mobile operators increasingly provide fixed broadband using 4G and 5G outdoor units. These devices can work extremely well, particularly because an outdoor radio avoids some of the attenuation caused by walls and can use directional or high-gain antennas.

But cellular fixed wireless generally depends on a relatively dense network of base stations.

That is less of a problem for an MNO that already owns or leases thousands of sites. For an independent ISP, building additional sites or leasing can destroy the economics that made fixed wireless attractive in the first place. 

This is the key impact of Cambium’s collapse: the replacement technology may be available, but not necessarily with the same cost structure.

An ISP moving to a platform with shorter effective reach may need more towers, more backhaul, more power systems and more radios simply to cover the same geography.

Its capital expenditure rises before it adds a single new customer.

The customer side can be even more expensive

There is another problem.

Fixed-wireless networks do not consist only of equipment on towers. They can involve thousands of subscriber radios installed at homes and businesses.

If an operator eventually migrates to a technology that is not compatible with its existing Cambium customer equipment, it may have to retrieve and replace those units.

That means field technicians visiting customers one by one.

For a network with 10,000 subscribers, what looks like a vendor switch on a spreadsheet can turn into thousands of installations, truck rolls and customer appointments.

This is why the cost of exiting a wireless platform can be substantially higher than the purchase price of the replacement equipment.

A difficult moment for Africa’s ISPs

Cambium’s collapse lands at a difficult time for independent ISPs across Africa. Many are already contending with currency weakness, imported equipment costs, power, rights of way, spectrum charges and limited access to capital.

Nigeria illustrates the pressure. Fixed broadband is growing rapidly, but the gains are increasingly being captured by mobile operators, satellite providers and a small group of larger ISPs. MTN has expanded aggressively into fixed broadband using its existing mobile infrastructure, while Starlink has grown from zero to nearly 100,000 Nigerian subscribers in about three years without building a conventional local access network. At the same time, several local ISPs have lost subscribers, while operators such as FiberOne that have continued to grow are doing so in a market that is becoming more concentrated.

By the end of 2025, Spectranet, Starlink and FiberOne accounted for almost 70% of reported ISP subscribers. Smaller providers are therefore facing greater competitive pressure just as their underlying cost base is becoming harder to manage.

This is why a forced migration away from long-range fixed wireless platforms such as Cambium is significant. It is not simply another equipment refresh. If replacement technologies require more base stations to achieve comparable coverage, operators also need more towers, power, backhaul, maintenance and capital.

Large MNOs like MTN already have nationwide spectrum holdings, extensive site portfolios, national transmission networks and greater procurement scale. Smaller ISPs do not. Any shift that raises site density therefore widens the structural cost gap between them.

That matters beyond individual operators. It affects competition in African broadband, because the market risks tilting further towards companies with the deepest balance sheets, the largest existing networks or, in Starlink’s case, an architecture that avoids much of the local access build altogether.

The wider question is vendor dependence

Cambium’s collapse also exposes something operators rarely discuss openly: vendor failure risk.

Telecom networks are designed around redundancy.

Operators duplicate fibre routes. They install backup power. They buy transit from multiple upstream providers.

But many still build large parts of their access networks around a single vendor.

Cambium demonstrates that technically excellent equipment does not eliminate corporate risk.

An operator can make the right engineering choice and still find itself exposed if the manufacturer later runs into financial difficulty.

The procurement question therefore needs to change.

It is no longer enough to ask how far a radio reaches, how many subscribers it supports or what it costs.

Operators also need to ask: how expensive would it be to replace?

Can open-access be established? Can another supplier’s equipment coexist with the installed base? Can management data be exported? Are configurations backed up outside the vendor’s cloud? Are alternative subscriber devices available? How much spare stock exists locally?

These questions are particularly important in African markets, where equipment is overwhelmingly imported and replacement cycles are vulnerable to FX movements, shipping delays and thin distributor inventories.

What happens next

Airspan’s acquisition means the worst-case outcome has been avoided for several important Cambium product lines.

But uncertainty around ePMP and parts of the enterprise portfolio remains significant. Cambium said administrators were still pursuing transactions for the remaining businesses, while members of the ePMP team said they were continuing to work as efforts were made to find a path forward.

African operators therefore face different levels of exposure depending on which Cambium products they use.

Those on acquired platforms may see relatively smooth continuity.

Those with large ePMP estates have more reason to watch the restructuring closely.

But the broader lesson is already clear.

Cambium succeeded in Africa because its technology helped independent operators overcome the continent’s difficult broadband economics.

Its collapse now shows how quickly that advantage can become a dependency.

For Africa’s smaller ISPs, the danger is not simply losing a favourite equipment supplier.

It is being forced into a more expensive network architecture at a time when many are already struggling to compete with much larger mobile operators.

That could make Cambium’s collapse not just a vendor story, but a broadband competition story.