Your radios still work. Your vendor doesn't. Here's what that actually costs you.

If your city, school district, tribal authority or business has outdoor wireless internet equipment mounted on poles and towers, there is a reasonable chance the company that made it is in the process of ceasing to exist. I want to explain what that does and does not mean, because the honest answer is less scary than the panic and more urgent than the shrug.

Here is the short version. The hardware is fine. It will keep working tomorrow. What you are at risk of losing is the ability to manage that hardware dash to log in, change settings, add users, push security updates. That is a software problem, and software problems have solutions if the right people make one decision in the next few months. If nobody makes that decision, publicly funded networks that work perfectly well get torn down and replaced. In the trade we call that a "forklift upgrade": you don't fix anything, you rip it all out and buy it all again.

I've spent close to thirty years in this industry and I've put a lot of this particular manufacturer's equipment in the air, including municipal networks. So let me walk through it.

What we actually know, and what is still rumour

On 10 September 2026, Cambium Networks Limited dash the England-registered entity the group operates under dash filed a Notice of Intention to appoint an administrator. Administration is the UK insolvency process; once a company enters it, it is generally shielded from creditors chasing it while appointed administrators work out what can be sold, salvaged or wound down. The trade publication ISPreview confirmed the filing independently, which matters, because there is a lot of rumour flying.

That followed a rough eighteen months. Trading in the company's ordinary shares was suspended at the open on 27 March 2026 after the Nasdaq Hearings Panel determined to delist it dash that is, remove it from the stock exchange. Cambium appealed, got current on its filings with the US Securities and Exchange Commission in May, and on 25 August 2026 the Nasdaq Listing and Hearing Review Council affirmed the delisting. The appeal is finished.

There is chatter that parts of the fixed wireless business might be sold to another group. Treat that as rumour until somebody puts a name on it. And note carefully what has not been said: nobody has said anything at all about the enterprise Wi-Fi products, the controller software, or the network switches. Silence is not reassurance, but it is also not a statement.

A short glossary, because the categories matter

Cambium's business sat in a few distinct buckets, and your exposure depends on which ones you own.

• Point-to-multipoint (PMP). One antenna on a tower serving many homes or buildings. This is how a lot of rural internet gets delivered where there is no cable.
• Point-to-point (PTP). A single high-capacity link between two locations dash the wireless equivalent of running a fibre cable, used to feed traffic back to the internet. Engineers call that feed the "backhaul".
• Enterprise Wi-Fi. The access points inside buildings and on light poles that phones and laptops actually connect to.
• Terragraph. A very high-frequency (60 GHz) technology used to build a mesh of short, fast backhaul links across a downtown area.
• cnMaestro. The management software. This is the dashboard. Lose it and you own a lot of expensive equipment you cannot configure.

One more piece of shorthand: "five nines" means 99.999% availability. "Line of sight" means the two ends of a wireless link can literally see each other; gear that works without that is harder to build and much more useful.

How we got here

This started as Motorola Canopy. For anyone who built wireless internet in the early 2000s, Canopy was the moment the field became a profession. Before it, you cobbled networks together out of whatever transmitted, and you drove back out when it stopped. Canopy arrived as one coherent program: hardware, management, a repeatable install. It cost more than people were used to and operators grumbled, but almost nobody grumbled about what it did. Its GPS synchronisation meant you could stack several antennas on one tower, or sit next to a competitor's tower, without the signals tearing each other apart. That is what turned point-to-multipoint from an experiment into a business. (Its reflector dish also confused customers endlessly dash I lost count of the calls insisting we'd mounted their satellite dish upside down.)

In 2006 Motorola added Orthogon Systems and with it point-to-point links that shouldn't have worked but did: five nines of availability through obstructions and over water, in a market where 95% was considered respectable. In 2011 Motorola Solutions was done, Vector Capital bought both businesses, and on 27 October 2011 Cambium Networks existed.

It inherited a problem it hadn't created. Ubiquiti had already entered the market while Canopy still wore the Motorola badge, with a brutally simple pitch: cheap radios, no licence fees, no recurring support charges. That wasn't a Cambium-era failure, it was the founding condition.

The Cambium years were a search for higher ground. Enterprise Wi-Fi was the big bet dash they acquired Xirrus from Riverbed in July 2019, the same year they went public and raised seventy million dollars. WISPA, the US trade association for fixed wireless providers, voted them Manufacturer of the Year four years running, 2017 through 2020. From outside it looked like a company arriving. cnMaestro in particular was genuinely ahead of the field: free cloud management with no licence, a paid tier for extras, and a version you could download and run on your own servers. Nobody else at that price was close, and it is still doing real work today.

But enterprise never landed at scale, and the squeeze came from both sides. Private LTE and private 5G dash cellular technology you run yourself dash took the use cases involving anything that moves. And Tarana went straight at the installed base over the last three or four years with better throughput and less need for clear line of sight. Long-standing customers started swapping.

The quiet tragedy is in the roadmap. The strongest thing this company ever built was point-to-point, and the PTP 650 was the one: 450 Mbps in a single channel, sold with a money-back guarantee that it would meet expectations. That confidence gets earned, not marketed. It is end-of-life now, and so is its successor. Meanwhile the investment went sideways into 60 GHz, chasing ground someone else was already taking. The crown jewel aged out while the company built the future somewhere else.

The irony nobody names

Canopy ran in unlicensed spectrum dash public airwaves, free for anyone to use dash and it locked you in completely, because the protocol running on top of that open spectrum was entirely proprietary. Buy Canopy and you bought Canopy's world, end to end. You could not swap one vendor's antenna for another's. That transferred straight into Cambium. Open spectrum, closed system.

Standard Wi-Fi protocols were the open alternative and they simply couldn't do the job at scale back then, so we all made that trade knowingly, and it was worth it at the time. The bill for that trade is what is arriving now.

Why some of these networks are already safe

A lot of municipal outdoor networks share the same two-part shape: Terragraph for backhaul, Wi-Fi for public access. I've designed and deployed exactly that, including a downtown municipal network in Alaska that carries a seasonal visitor load several times the size of the resident population. The interesting part is that the two halves are in completely different positions right now.

The Terragraph half is safe in principle, because the entire software stack lives at Linux Foundation Connectivity as open source dash drivers, cloud software, network management, all of it. Meta contributed the specifications and worked with chip vendors precisely so that no single manufacturer would own it. That work was done years ago by people who saw this exact failure mode coming.

The Wi-Fi half doesn't have that yet, but it easily could. OpenWiFi came out of the same Telecom Infra Project that produced Terragraph, same parent, same philosophy, and the entire premise was this scenario: if your vendor goes dark, you reload the hardware with open software and manage it with something else. You don't lose the network because you lost the company. I worked on OpenWiFi at Meta as a Connectivity Technology Manager. It wasn't hypothetical then and it isn't now.

So here is my ask, to whoever ends up holding these assets and to the engineers who built them: release it. Open cnMaestro, or approve an OpenWiFi software load for the access points. It would be an extraordinary waste for that engineering to become a dead login page while the radios it managed keep working perfectly on poles and towers around the world.

Understand what the alternative means, because it means forklifts. It means municipalities, school districts and tribal networks that scraped funding together tearing down networks that work fine, because the dashboard went away. Public infrastructure investment shouldn't have a shorter service life than the light poles it's mounted on.

And for a buyer this isn't charity. A dead controller means a migrated customer. An open one means a customer who stays. The people who can make this happen are, as of this week, free to do it. That's the strange gift in all of this.

If you're deciding what to buy next

Honest landscape, no particular order. In point-to-multipoint using CBRS dash a band of shared US spectrum dash the bench is thin. Tarana is the performance leader and its next-generation platform looks strong. After that it gets uncomfortable: Baicells makes good equipment at a good price, but Chinese manufacturing has drawn enough scrutiny that many operators touching government or critical infrastructure won't go near it regardless of specs. Telrad and BEC Technologies are real, but neither has much North American footprint, which means few peers who've already solved your problem. So you're choosing Tarana, or you're reconsidering the architecture dash and reconsidering may be the actual answer. Private LTE or private 5G uses the same spectrum, has standards-based equipment from multiple vendors, and serves devices that aren't bolted to a rooftop. That's an architecture with a future rather than a like-for-like swap into your next single-vendor dependency.

For point-to-point, consolidation had already thinned the field: look at Ceragon (which now includes Siklu), Aviat and RADWIN. You will pay more than you did, and you will miss the old gear. For 60 GHz you're in better shape than you think dash RADWIN, Edgecore and Ceragon all have options, and Altowav does something similar, though proprietary. For enterprise Wi-Fi, migration between vendors is the easy part; matching the feature-per-dollar is the hard part, and you'll feel it in the quote.

If you employ, hire, or work alongside the people who built this

From everything I can tell, this wasn't an engineering failure. The products were good and I don't know a single person who used them and came away unhappy. The company had the products, the people and the services; it never got over the hump on market viability, and the folks who did the work are paying for decisions they didn't make.

The shutdown itself creates demand for exactly their knowledge. Every municipality, military site, government buyer and enterprise with this gear in the air just lost its support path for the next three to five years minimum. Independent support and migration advisory for orphaned estates is a real practice somebody is going to build. Distributors and resellers who sold this for years have customers calling Monday morning with no factory behind them, and someone who knows this equipment solves that problem the day they walk in.

One caution, and I'm not a lawyer: confidentiality obligations generally don't evaporate when a company stops operating, and they often transfer to whoever acquires the assets. Assume your NDA may still stand, and be upfront with prospective employers about what you're bound by dash they have counsel and they'll tell you what they can and can't do with you. I posted an offer to connect people on LinkedIn and picked up forty or fifty new connections almost immediately. The industry is already catching people.

Do this, and ask this

• Don't panic-forklift. Inventory your spare equipment, document your configurations, and export everything you can from the management system while it is still reachable. Do that this week, not next quarter.
• Ask your own team or contractor: which of these buckets are we actually in dash point-to-multipoint, point-to-point, Terragraph, enterprise Wi-Fi dash and what breaks first if the management software stops being available?
• If you run Terragraph, have someone look at Linux Foundation Connectivity. The open-source work is already done.
• Put lock-in risk on your vendor scorecard as a line item, next to price and performance. Ask every vendor on your shortlist, in writing: what happens to me if you're next? Can I manage this hardware with software you don't control? Eighteen months ago that question would have been dismissed as paranoid. It isn't now.
• If you're in CBRS, evaluate Tarana dash and evaluate just as hard whether private LTE or 5G answers the question you were actually asking.
• If you're holding the assets, open the management layer. You'll be remembered for it, and it's the commercially smarter move besides.

Tomorrow morning, every one of these radios on every tower and light pole on earth is going to wake up and do its job, serving people who will never once think about who manufactured them. The hardware is fine. The hardware was always fine. What's at risk is the ability to manage it, and that has a solution if somebody decides to open the door on the way out rather than pulling it shut behind them. Terragraph already proved the work can outlive the company, because somebody chose to make it open years before anybody needed it to be.

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