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The OTA (from the ArduinoOTA library) on my ESP8266 does not show up in the programming ports on the Arduino IDE unless I restart the IDE. Even when I plug in a usb cable and the ports list updates to show that device, it does not show the network port without a restart. Does anyone know why this would happen or how to solve it?

I downloaded the newest version of the IDE and this is still the case.

  • Is there any way to make the IDE actively check for a re-established mDns connection? – Murey Tasroc Aug 4 '18 at 7:25
  • I have the same problem, ports appear on IDE restart and then except one (which also seems to be random) all disappear after some time. – Sundeep Goel Jan 5 at 5:28
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I found an workaround for Windows:

  • disable IPv6 from Network Configuration
  • disable/enable network interface
  • restart Arduino IDE

You should see your OTA device in port list, in Arduino IDE.

  • Do you have to do these steps every time the OTA device turns on or does this cause the IDE to actively monitor for network OTA ports? – Murey Tasroc Jan 25 at 4:53
  • I just did it on the Windows machine with Arduine IDE. For example on Mac I don't have this problem. – Bogdan Jan 26 at 9:15
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For some reason you have to close and reopen the Arduino IDE for it to discover all available OTA ports. Not sure why this is -- if anyone knows I would be glad to learn.

EDIT: keeping this answer just for comments -- it's not a real answer.

  • Which version of Arduino IDE? Which Operating System? Mine eventually discovers a a device that is flashed with OTA support added - usually takes less than a minute – Jaromanda X Jun 18 '18 at 1:56
  • 1.8.4 OSX -- is there maybe a refresh ports function somewhere in the IDE? – Murey Tasroc Jun 18 '18 at 11:02
  • How long do you wait? Is there a later version of the ide available for Mac – Jaromanda X Jun 18 '18 at 11:27
  • I downloaded the most recent version of the IDE and this is still a problem. – Murey Tasroc Aug 4 '18 at 7:26
  • I have this problem on Windows 10. I am running Arduino 1.8.5 but this problem has been on previous versions. From what I understand it is a Windows issue. But some people have what appears to be the same problem because it get assigned to IP6 rather than IP4. I'm not really familiar with the details. – Rudy Dec 2 '18 at 14:58

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