i am trying to setup above device more specifically SXTSQ AC 5ghz CPE in our office and struggling in terms of setting it up.

i was able to make two devices communicate with each other but thats pretty much about it. both of them have our internal corp ip but i cant get onto the web interface. i can ping them but that's all.

would these devices pass through all VLANs/dhcp scopes from our switches without the need to configure anything on the device itself? if i need to configure all forums seems to state i need create multiple interface for each VLAN and DHCP scope is thats the case.

Can anyone advise?

On each device you should have the ethernet and the wlan in a bridge

You should have a dhcp-client on the bridge

On the wireless set one end as Bridge, and the other as station bridge, then they will just be a transparent layer 2 bridge.

Hope that helps
Nick