Do not use port NAT, delete all NAT, and try again Yes, there's no need for any port forwarding on the 7206s, only on the BT SMart Hub s @Stariaa However , I think you may be on a hiding to nothing...

@Stariaa Hi This has been changed Main Site BT Router Lan 192.168.0.1 TPLink Router: 192.168.1.1 Remote Site BT Router 192.168.4.0 TPLink Router: 192.168.3.1 Thanks for confirming. Since your Omada...

@Stariaa The routers are also connected and adopted and configured with the following subnets. Main Branch 192.168.1.0/24 Remote site 192.168.3.0/24 The BT Smart Hub routers will have a default LAN...

@KJK I think we have two problems here :- 1) Your scenario where the ISPs DHCP relay agent returns its own IP as dhcp server in the ack to dhcp req, rather than the 'real' dhcp server (presumably...

@awaykent You'll find details of the procedure on page 237 of the user guide ( download from here https://www.tp-link.com/uk/support/download/er605/v2/ ) Basically use the menu option :- System Tools...

@esiedlecki I was able to resolve the issue by removing all Omada equipment and replacing it with Ubiquiti Unifi hardware. Sorry, I seem to have missed that I find it very strange that other routers...