C4 running with blue led

My C4 running platform 2.3.7.139 has a blue led today. It is running and I can connect and control devices and edit apps. Seems like every so often the blue light blinks. Should I just ignore it, or perhaps shut down and restart.

Tried reboot via diagnostic screen - no change
Tried power down via Diagnostic screen, pulled power for 3 minutes, repowered - same result.

I'm guessing the control circuit for the led has failed.

The C-4 LED only has two colors. Red and Blue. Blue means that the platform is running and everything is ok.

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Mark it up to a senior moment. Thanks for the refresher sir.

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Mine too. I love my C4. It's like a tank and the most reliable of all my hubs.
Like this C4>C5>C7>C8