Make sure to enable the following ports:
Port | Protocol | Direction | Purpose |
80 | TCP | Inbound/Outbound | Local HTTP control |
443 | TCP | Outbound | Cloud communication |
53 | TCP | Outbound | DNS resolution |
5353 | UDP | Inbound/Outbound | mDNS for discovery |
5683 | UDP | Inbound/Outbound | CoAP (for older Shelly devices) |
6010-6022 | TCP | Outbound | WebSockets (Shelly Plus/Pro) |
6110, 6113 | TCP | Outbound | Additional RPC/WebSockets |