@jim2cpu You are right. If you only have Omada Gateway, then you can not do LAN-to-LAN access control with the IP group you created. There are only default "Network" IP groups. Hope there will be an...

@Juampeeh Not sure if I understand you correctly, but it seems like a problem caused by duel WAN. You may need to confirm if you enable Load Balance successfully, and enable Application Optimized...

@RNas It's not possible for ER605, it's an NATrouter. What you need is a L2+ swicth to do the routing.

@TPler Change the EAP SSID/password to the same as your main router

@Jeesoon1 ER605 v1 here, with Software controller 5.7 Did the same test but it just shows Not Found

@johnsnow88 Try to create a new SSID without password, and check if you can connect this test SSID