@KRIS537 

The reason not having an Internet connection on AX23 is that you've turned off the Sky router's DHCP server.

To use your AX23 as a main router, your Sky router should be in modem only mode.

As far as I know Sky router is a modem/router, which doesn't support modem only mode.

If I am correct in this assumption then you have two options:

1. AX23 in AP mode (Case 1) connected to the Sky modem/router.

2. AX23 in Router mode connected to the Sky modem/router.

In the first case you won't be able to use the OneMesh feature (Q8/A8), but you'll avoid the double NAT in your network.

Also you'll lose some device features in AP mode.

In the second case you'll be able to use the OneMesh feature, but you'll introduce a double NAT in your network.

  @KRIS537 

In the second scenario (when AX23 is in 'Wireless router mode') you're actually using AX23's DHCP server.

In this case the problem is that you most probably can't turn off your Sky hub NAT (here what is NAT).

That will introduce a double NAT in your local network - once from Sky hub and once again from AX23.

This is not necessary a bad thing, but it may be tricky opening ports for gaming or network services on devices connected to AX23.

If Sky hub can't be set in modem mode, I would turn off its wireless radio and configure a DMZ to the AX23 IP address to control opening ports on the AX23 only:

https://www.skyuser<dot>co<dot>uk/forum/attachments/asking-help/2226d1299860880-using-dlink-dir613-setting-up-dlink-dir-613.pdf