# Herelink V1.1 – Cannot connect to server / Product Key

**URL:** <https://discuss.cubepilot.org/t/herelink-v1-1-cannot-connect-to-server-product-key/17929>\
**Category:** HereLink\
**Created:** [24 September 2026 11:44 UTC](https://discuss.cubepilot.org/t/herelink-v1-1-cannot-connect-to-server-product-key/17929 "2026-09-24T11:44:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Dominique](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/dominique/32/9875_2.png) [@Dominique](https://discuss.cubepilot.org/u/Dominique)\
**Post date:** [24 September 2026 11:44 UTC](https://discuss.cubepilot.org/t/herelink-v1-1-cannot-connect-to-server-product-key/17929/1 "2026-09-24T11:44:21Z")

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Hello CubePilot Support,

I have a Herelink V1.1 and I am having problems with the registration/activation.

When I try to register or activate the device, I cannot connect to the server.

Here are the device details:

Model: Herelink V1.1  
Serial Number: HX4060759800787  
Product Key: UA4A-Z2Y4-USJE-UUUD  
Build Number: N2G47J test-keys  
OEM Build Number: BRU01211104

Could you please check whether this Product Key and Serial Number are correctly registered in your system?

I would also like to know whether the “test-keys” build could be the reason why I cannot connect to the server or complete the activation.

Could you please advise me how I can resolve this issue and, if necessary, install the correct official firmware/build?

Thank you very much for your assistance.

Best regards,  
Dominique Stemmler