Continuo discovers peers with Bonjour on the local network only. If nothing appears under Available in the menu bar panel, the two Macs are usually not on the same LAN from macOS’s point of view, even when both show Wi-Fi connected.
Work through the sections below in order. Most discovery failures are a network segment or permission issue, not a Continuo bug.
How discovery works
Both Macs must be running Continuo and able to exchange mDNS broadcasts on the same subnet. No IP addresses or port numbers to type; Bonjour handles the match.
Same network, really
Both Macs need the same Wi-Fi or Ethernet segment: same SSID, not one on guest Wi-Fi and one on main. Ethernet and Wi-Fi on the same router generally work when they share a subnet. Personal hotspot or phone tethering often isolates clients from each other and from wired devices.
VPN and firewalls
A VPN that captures all traffic can block local discovery. Disconnect the VPN or split-tunnel local addresses so mDNS stays on the LAN. Corporate firewalls and security tools that filter mDNS/Bonjour will also prevent discovery.
Access point client isolation
Many guest networks and some office access points enable client isolation: Wi-Fi clients cannot see each other. Continuo needs peer-to-peer visibility on the LAN. Use a network without isolation, or wire both Macs to Ethernet on the same router.
Local Network permission
Grant Local Network for Continuo under Privacy & Security. See Permissions for the direct links from the app.
Both Macs must have Continuo running. Discovery stops when the app quits.
Paired, but slow
If the Macs pair but latency is high, discovery is not the problem. See Performance for what to check.
Still stuck?
Note what each Mac shows in the menu bar panel: Available empty, a paired Mac that reads Offline, Online — not connected or Not responding…, or permission banners. Get in touch with both machine descriptions and what you already tried.