• The neopixel library only got introduced in 1v92, so that might be why you had problems on one board? (you could do neopixels before, it just wasn't as 'nice').

    Just tried your code, and it runs and says hello world over Wifi again (I haven't wired up any neopixels to it though)

    Does it say something like the following after you upload?

    Connected:  {
      "Title": "Test Piece",
      "Network": "Kraken",
      "macaddress": "5c:cf:7f:c0:f4:85",
      "ipaddress": "192.168.1.111",
      "type": "neopixel",
      "width": 16, "height": 16 }
    

    Is it possible that your PC and the Wifi are on separate subnets, or there's some firewall software or something that might be stopping you accessing it? Is it possible you're trying to access https://192.168.1.111 and not http://192.168.1.111?

    What if you try and create a server on a separate port, just in case?

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