# Robot registration licence issue

**URL:** <https://forum.universal-robots.com/t/robot-registration-licence-issue/28965>\
**Category:** General Application Help: How do I?\
**Created:** [June 13, 2023, 8:55am UTC](https://forum.universal-robots.com/t/robot-registration-licence-issue/28965 "2023-06-13T08:55:55Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![anon81542907](https://avatars.discourse-cdn.com/v4/letter/a/839c29/32.png) [@anon81542907](https://forum.universal-robots.com/u/anon81542907)\
**Post date:** [June 13, 2023, 8:55am UTC](https://forum.universal-robots.com/t/robot-registration-licence-issue/28965/1 "2023-06-13T08:55:55Z")

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Hi,

I’m having an issue trying to activate the licence on a UR10. I’d like to do so, so that I can use the Remote TCP and Toolpath URCap.

I have registered the robot on [Universal Robots - Activate](https://www.universal-robots.com/activate/), downloaded the licence, and then put it into the UR teach pendant. When I tried to activate, I got the issue in the attached picture “Registration file is invalid: Robot failed to register. The serial number in the selected file doesn’t match this robot”

 ![IMG_20230612_155619_HDR](https://us1.discourse-cdn.com/flex020/uploads/universal_robots/original/2X/d/d7fdf5e95156fb5da078ce7558c1b8bd9d05fb6b.jpeg)

I’ve double checked the serial number and it’s correct. I think it may have been registered before and our team has lost the original licence; maybe it’s not allowed to re-register?

Does anyone know how to sort this issue, or know of another way to activate the Remote TCP and Toolpath URCap?

Thanks

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**Author:** ![efn](https://avatars.discourse-cdn.com/v4/letter/e/35a633/32.png) [@efn](https://forum.universal-robots.com/u/efn)\
**Post date:** [June 13, 2023, 11:00am UTC](https://forum.universal-robots.com/t/robot-registration-licence-issue/28965/2 "2023-06-13T11:00:17Z")

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Have you checked what serial number is set up in Polyscope and not just the physical sticker? 🙂 Could be it has been reset earlier, and the serial number has not been restored correct.

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**Author:** ![anon81542907](https://avatars.discourse-cdn.com/v4/letter/a/839c29/32.png) [@anon81542907](https://forum.universal-robots.com/u/anon81542907)\
**Post date:** [June 13, 2023, 1:55pm UTC](https://forum.universal-robots.com/t/robot-registration-licence-issue/28965/3 "2023-06-13T13:55:06Z")

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That’s it, thanks! The sticker on the controller and robot has the same serial number, but this was different from the serial number on Polyscope.

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**Author:** ![efn](https://avatars.discourse-cdn.com/v4/letter/e/35a633/32.png) [@efn](https://forum.universal-robots.com/u/efn)\
**Post date:** [June 14, 2023, 4:15am UTC](https://forum.universal-robots.com/t/robot-registration-licence-issue/28965/4 "2023-06-14T04:15:05Z")

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I would consider fixing the serial number before doing anything else. You might get some issues with service later on. 🙂

It can be done by editing the file “ur-serial” in the root folder by establishing an FTP connection to the robot.

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<div class="post-metadata">

**Author:** ![anon81542907](https://avatars.discourse-cdn.com/v4/letter/a/839c29/32.png) [@anon81542907](https://forum.universal-robots.com/u/anon81542907)\
**Post date:** [June 14, 2023, 8:13am UTC](https://forum.universal-robots.com/t/robot-registration-licence-issue/28965/5 "2023-06-14T08:13:13Z")

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Thanks, will give it a go