: Supports single-band 2.4GHz WiFi with speeds up to 300Mbps.
While the hardware supports 802.1Q VLANs, the ISP firmware usually locks them. You cannot route specific SSIDs to specific VLANs (no IoT isolation without a managed switch). firmware gm220s top
To check your current version or begin an update, you must log into the device’s backend: ONT GM220S Best Modem Router FTTH GM220S : Supports single-band 2
STATE REGISTER: if check_network_registration() success: goto CONNECT else retry with backoff; if retries exceed limit -> REBOOT or ERROR if retries exceed limit ->