Hello,
Regarding the issue, you are having kindly make sure the IP address of the RUT950 is not the same as your Wireless network. Let say the WiFi network is running on 192.168.1.0/24 and the default IP address of the router is 192.168.1.0/24 so it may conflict. So the best thing to do is try changing the LAN IP address of the RUT950 to a different network and test it again : )
Regards,
Mellow