@fishermanG 

since it works on the ER706w, you probably don't have vlan enabled on the interface that is connected to the switch.. can you show screenshots of one of the interfaces that doesn't work.
but make sure all ports are enabled on all vlans

  @MR.S 

Thanks for looking into my issue. 
 

LAN4 on ER706w is connected to the switch on Port 1 (Uplink)

All the VLANs configured has LAN4 enabled as the interface on ER706w. 

Both Port 1 (uplink) and Port 7 (AP) on SG2218 has "All" profile assigned so I expect all vlans to pass through this port and then to the ssid.
 

If the ports are misconfigured somewhere somehow, how come Port 9 which is my PC, I am able to receive the ip from 1-LAN. On the other hand, I'm not able to connect to 1-LAN wirelessly (no ip address) if I try to connect to ssid broadcasted from that eap 
 

  @fishermanG 

show me screenshots of all vlan interface config, what you show me tells me nothing.

show me this on all vlans

  @MR.S 

It's the same configuration for all vlans. 

  @fishermanG 

ok, then I have the whole picture I think :-) there is no reason why this should not work on EAP650 but works on ER706w have you configured anything else on the controller, switch/EAP acl for example that could cause problems for you?

  @MR.S 

Exactly. I have no clue. I spend hours troubleshooting. Reset, readopting. Reinstalling the controller. Changing the cable, trying different ports. No avail. 

Those are the only things I configured. No ACLs. 
 

Hope the devs can look into this and provide more insights. 

  @fishermanG 

yes, it seemed strange, I have a small lab with roughly the same setup as you, it has always worked, what happens there is a mystery,
i have EAP653 but it is about the same as EAP650.

as you can see, everything is about the same, I also use PPSK.
but can you try to create an SSID without PPSK and put vlan on the SSID

  @fishermanG 

ok so all vlans work except vlan1, when I look between your config it's not so strange. remove 1 in vlan on your ppsk users. if it says 1 there it will not work on vlan1 on vlan1 you should not put anything since it is a deafult vlan 

this is how it should look on vlan1 access

why it worked on the ER706w is still a mystery. it shouldn't work there either if vlan1 has been the problem all along

  @MR.S Yes you're right. Thanks a lot!