# Ble scan issues

**URL:** <https://discourse.nodered.org/t/ble-scan-issues/22561>\
**Category:** General\
**Created:** [3 March 2020 14:17 UTC](https://discourse.nodered.org/t/ble-scan-issues/22561 "2020-03-03T14:17:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![andreas58](https://avatars.discourse-cdn.com/v4/letter/a/8edcca/32.png) [@andreas58](https://discourse.nodered.org/u/andreas58)\
**Post date:** [3 March 2020 14:17 UTC](https://discourse.nodered.org/t/ble-scan-issues/22561/1 "2020-03-03T14:17:45Z")

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After rebooten my raspberry node ble scan doesn’t work anymore. It did work for a long time before. Error message is “Unable to start BLE scan. Adapter state: unauthorized”.  
Any idee?

Thanks

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [2 May 2020 14:17 UTC](https://discourse.nodered.org/t/ble-scan-issues/22561/2 "2020-05-02T14:17:47Z")

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Closed on 2 May 2020 14:17 UTC

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