My set up is as follows
Fiber->Opn sense machine, with AdGuard-> TP Link Deco mesh acting as a router-> remaining deco in AP mode.
The issue is that AdGuard only sees the First TP link Deco router IP (assigned by Opnsense). So all requests that AdGuard sees are that singular Deco IP.
Is there a way configure OpnSense to act as the router, while maintaining the TP link Deco mesh functionality ?
So to go FROM
Opnsense->deco mesh router mode -> deco APs
TO
Opnsense router-> Deco mesh APs
This way all end device IPs will show up on the AdGuard side.
AdGuard won't work how you want it to having the Deco in router mode. You already have a router (OPNsense). Put your main Deco into AP mode. All the mesh functions will still work. I can verify because that is how my system is setup.
fiber -> opnsense (router with AdGuard) -> main deco (ap mode) -> two deco satellites