- Same Wi-Fi? The phone must be on the home network. Guest networks and client isolation block the phone from finding the server.
- Is the server running? On a Mac, is it awake and logged in? See Keep it running.
- The firewall. On a Mac,
nodemust be allowed to accept incoming connections. On Linux, open TCP 5400 and UDP 5353. See Home network only. - Subnets and VLANs. mDNS, how phones find the server, doesn't cross them. Pair by QR code or typed address instead.
- From a browser. Open
https://<the machine's address>:5400on the phone. If it doesn't load there, the problem is the network or the server, not Piktures.