In repeater mode, I have found that you can still access the Slate, but you have to do so at 192.168.8.1 as it is still listening at that address.

To accomplish that you will have to set the connecting device to manually connect to it without using dhcp. It is usually easiest to do that over Ethernet but I have used WiFi as well. You will need to set your PC/Laptop to a fixed IP (192.168.8.2) with a gateway of 192.168.8.1 and usually a netmask of 255.255.255.0 (or 24).