DSC-BRAIN USER GUIDE · TROUBLESHOOTING

Cannot reach the dashboard

Address checks, hotspot vs LAN, .local resolution, the two-minute restart window, and SSH checks.

  verified for 9.0.0 · firmware train 8.2.0.0

  last verified 2026-09-17 · mirrored 2026-09-15

Check the address

You are on Try
Home LAN, Pi on Ethernet The mDNS name on the kit card with :8787, then the Pi's LAN IP with :8787 (find it on your router)
The Pi hotspot The hotspot dashboard address printed on the kit card

Some phones refuse .local names or fall back to mobile data on a hotspot with no internet. Use the IP form and turn mobile data off.

Timing

  • A fresh card needs 3–5 minutes on first boot.
  • Every brain restart (an update, a deploy) drops the hotspot briefly; fleet devices rejoin within about two minutes. Wait, then reload.

Still nothing

  1. Ethernet link light on the Pi? Power light steady?
  2. Over SSH (user dsc): curl -s http://127.0.0.1:8787/health should answer. If not: docker ps should list dsc-hub-brain; docker logs --tail 100 dsc-hub-brain shows why it is not up.
  3. If the container is up but the page is blank, hard-reload the browser (Ctrl+Shift+R); a stale bundle after an update is the usual cause.

The ESPHome dashboard instead

Port 6052 on the same host is a separate service; it answering while 8787 does not means the brain container is the problem, not the Pi.

DSC-Brain user guide · Cannot reach the dashboard · this page is edited on the site; the Notion original was retired after the mirror