# ui\_LED, dashboard and error 401

**URL:** <https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500>\
**Category:** Dashboard\
**Created:** [1 February 2019 22:37 UTC](https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500 "2019-02-01T22:37:39Z")\
**Posts on this page:** 4\
**Page:** 3

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**Author:** ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Post date:** [6 February 2019 01:48 UTC](https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500/41 "2019-02-06T01:48:25Z")

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I use FF.

I think I have (somewhere) Chrome. But no promises.

Yes, the "Main machine" is used to see both. (Thus _main_ machine.)  
It works on the local NR but not on one of the other two RPIs.  
The second RPI has since been tested and it works.

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**Author:** ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Post date:** [6 February 2019 08:12 UTC](https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500/42 "2019-02-06T08:12:51Z")

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To all and sundry

I found time today to look at the FF, NR, ui\_LED, RPI problem.

It now works.

To my knowledge **nothing** has been updated or changed. Though other problems have since happened. (See my "dashboard has gone nuts" post.)

Go figure. (Shrug)

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [6 February 2019 09:00 UTC](https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500/43 "2019-02-06T09:00:21Z")

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So just to confirm, the LED now works correctly, switching colour when you send it true/false?

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**Author:** ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Post date:** [6 February 2019 09:14 UTC](https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500/44 "2019-02-06T09:14:38Z")

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Correct.

I don't know how/why this happened.

(But see my new post about another dashboard problem)

[Previous page](https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500.md?page=2)