# Error when Luban try to connect to my Snapmaker

**URL:** <https://forum.snapmaker.com/t/error-when-luban-try-to-connect-to-my-snapmaker/26785>\
**Category:** Snapmaker Luban\
**Created:** [July 22, 2022, 8:24pm UTC](https://forum.snapmaker.com/t/error-when-luban-try-to-connect-to-my-snapmaker/26785 "2022-07-22T20:24:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Bluedrakonlux](https://avatars.discourse-cdn.com/v4/letter/b/bcef8e/32.png) [@Bluedrakonlux](https://forum.snapmaker.com/u/Bluedrakonlux)\
**Post date:** [July 22, 2022, 8:24pm UTC](https://forum.snapmaker.com/t/error-when-luban-try-to-connect-to-my-snapmaker/26785/1 "2022-07-22T20:24:30Z")

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Since 2 days i’m no longer able to connect Luban 4.3.2 to the Snapmaker 2.0 using Wifi

Error Message - Failed to connect, invalid authentication

But in Luban and on the Snapmaker it show me the same IP address and in the Router the Snapmaker is connected over Wifi  
Reinstalling Luban has not solved the problem.

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**Author:** ![DaHund](https://avatars.discourse-cdn.com/v4/letter/d/7993a0/32.png) [@DaHund](https://forum.snapmaker.com/u/DaHund)\
**Post date:** [July 29, 2022, 1:23am UTC](https://forum.snapmaker.com/t/error-when-luban-try-to-connect-to-my-snapmaker/26785/2 "2022-07-29T01:23:03Z")

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Ive been running into a similar / same problem. Im now connected after downloading and installing a previous (4.1.1) version of Luman.

[Snapmaker Luban Downloads and Updates - Snapmaker Luban - Snapmaker: where creation happens](https://forum.snapmaker.com/t/snapmaker-luban-downloads-and-updates/4949/12)