Skydemon won't connect to Safesky with "Address Already In Use" message

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Using an iPad mini, Skyecho 2, Safesky and Skydemon. After connecting Safesky to the Skyecho Wifi and minimizing, when I select ‘Go Flying’ and GLD 90 device on Skydemon I get the error message “Address Already in Use”. I have tried every possible start up sequence and tried multiple iPad settings. Very occasionally it will work but when I shut down and restart I am back in the same loop.. Also ccasionally the Wifi link to Skyecho drops despite being on the ground. Things work if I use ‘location services’ for Safesky instead of Skyecho. I am trialing premium membership but this seems way to unreliable to risk flying with.

1 Like
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Hello Andrew,

We are trying to reproduce on our side the problem you described. It’s possible to be a local configuration issue, we will come back to you shortly.

Fly Safe,

Tristan

3

Hey, me too, I have the same issues

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Hi Tristan - is there any update on this topic. Everything seems to work when I connect Safesky to Location Services on the iPad mini and traffic shows on Skydemon. If I try to use the Skyecho 2 I always get the “Address Already in Use” message.

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Same problem here. The “Address already in use” message usually appears in SkyDemon after the first SafeSky “Take Off” after connecting to the SkyEcho 2.

I then have to stop SafeSky and tap “Take Off” again. After that, SkyDemon can connect without any problems.

Skydemon 4.3.2.453, Safesky 3.0.34, iPad mini (5th generation). iPad OS 26.5.2

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I can confirm DavidFlint message. Seeing this exact same issue ob iPad Mini 7 (IOS 26.6.1), SkyDemon (version 4.3.2) and SafeSky (version 3.0.35) with my SkyEcho II.

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Dear SafeSky Support Team,

I am experiencing the same problem when trying to use SafeSky together with SkyDemon and a SkyEcho 2 on the same iPad.

My intended setup is:

SkyEcho 2 → SafeSky → SkyDemon

However, when I start SkyDemon and select “Go Flying → Use GDL90 Compatible Device”, SkyDemon reports:

“Not connected. Address already in use.”

I have carried out the following troubleshooting steps:

  1. Tested SkyEcho 2 directly with SkyDemon, without SafeSky running. This works correctly.

  2. Completely closed both SafeSky and SkyDemon and restarted them in the recommended order:

    • Connected the iPad to the SkyEcho Wi-Fi

    • Started SafeSky

    • Enabled Traffic Sharing and selected SkyDemon

    • Enabled External Traffic Device and selected SkyEcho

    • Started the flight in SafeSky using “TAKE OFF”

    • Put SafeSky into the background

    • Started SkyDemon and selected “Use GDL90 Compatible Device”

    This results in the “Address already in use” error.

Could you please advise whether this is a known issue with SafeSky/SkyDemon on iPadOS, or whether there is a setting or workaround required to prevent the apparent GDL90/UDP socket conflict?

Thank you very much for your support.

Kind regards,

FrequentFlyer