TeamViewer "commercial use detected": why it happens and how to fix it

What this warning is

TeamViewer's free version is licensed for personal use only. The program watches your usage pattern and, when it finds signs of professional activity, ends the session and starts limiting the connections that follow. The company documents this behaviour in its own knowledge base, under the heading Suspected commercial use.

It is not a bug and not a mistake: it is the licence terms being enforced. Understanding that changes what you should do next.

What usually triggers the detection

TeamViewer does not publish the exact criteria — and it makes sense that it does not, since they would simply be worked around. From the pattern reported by people who run into it, the most common signals are:

• Many different computers. Connecting to dozens of distinct machines is what a service provider does, not someone reaching their own PC.
• Short, repeated sessions. Connect, fix, disconnect, connect to another — the rhythm of support work.
• A network identified as corporate. IP ranges registered to companies.
• Business hours, weekdays. Usage concentrated between 8am and 6pm, Monday to Friday.
• Machine names or a corporate domain. Computers joined to a Windows domain, with standardised names.

Notice that most of these signals show up in perfectly legitimate use. A freelance technician helping five clients a week hits nearly all of them, even without a registered company.

Why the reset form does not settle it for good

There is an official form to declare that your use is personal and ask for the block to be lifted. It works — but it is a reversal, not immunity.

If your use really is personal, the form is the right path and worth filling in. If it is professional, it only postpones the problem.

Your options when you have a client waiting today

1. Pay for a TeamViewer licence

It is the direct, frictionless answer. What deserves attention is not the price but the shape of the entry plan: it covers only a handful of devices, and it is billed annually — there is no true monthly option. Moving up to the tier that fits client work means a considerable jump. Current figures are on the official pricing page.

The detail that catches people out: the entry plan is built for reaching a few of your own machines. Supporting clients means Business or above.

2. Switch to a tool without a restricted free tier

Much of the frustration is not the price — it is having a session cut off without warning. Tools that only have paid plans have no such mechanism: the limit is written into the plan and does not shift based on how you behave.

3. Host it yourself

There are open-source options, such as RustDesk, where you run the server yourself. Cheap in licensing and expensive in time: you have to maintain the server, the certificate, the updates and the backups. It makes sense if you have an IT team, and not if you just want to help the client.

What each entry plan actually gives you

Device counts and billing terms checked on the official pages in September 2026. We deliberately do not quote competitor prices here: they vary by country and change often. Check their pricing pages before deciding.

How to choose without regretting it

Two questions settle most cases:

1. How many different computers do you reach in a month? Up to three, any tool's entry plan will do. Above that, the entry plan becomes a trap and you will have to move up a tier.
2. How many people work at the same time? This is what drives the price up most. One simultaneous connection is the standard in almost every cheap plan; the second usually costs as much as a whole extra licence.