Yes it is connected to the Fibre
The Fibre comes into the house in the Garage upstairs and then Ethernet runs from there into my first D-link Switch in my office closet downstairs
Which then Hardwires into the E4200 and the ISP provided router
The router has been in the same place in the closet for 2 years sucessfully
Wireless connectivity is completely fine other than that when the router seems to drop the internet I can't access any external sites but I can access 192.168.2.1 (The E4200 set up page)
I've got the wireless set up with 2 seperate SSID's 1 for 5 GHZ and 1 for 2.5 GHZ
Both work fine in all areas except fhe one dead zone which the WRT45G is servicing.