Sphinx app error trying to connect

I am trying to get the Sphinx iOS app to connect to my Umbrel node.

  • I’m running Umbrel 0.4.8.
  • I have opened a channel with gameb_1. It has 100,000 sats and I pushed 2,000 sats.
  • I go to http://umbrel.local:3300/connect and scan the QR code with my phone. The app shows a loading indicator and says “Please wait” but eventually says “Whoops! Something went wrong”.
  • I also have tried the macOS app with no luck.
  • I disabled VPNs on all devices but it made no difference.

Is there something else I’m supposed to do?