The guest network has been separated from the LAN since v4.5.
On the left side of web Admin Panel -> NETWORK -> Guest Network.
Note: Some models do not have WiFi (e.g. GL-MT2500/GL-MT2500A), so there is no Guest Network tab.
The Guest Network is the network if your device connect to the Guest WiFi.
The Defautl Gateway is 192.168.9.1, If you have enable the Guest WiFi and it conflicts with your network, you can change it.
The other basic setting and the DHCP server setting are the same as LAN.
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