I have just come back from the client as I had to go there to apply the remote access vpn settings which I forgot to do. Looking through the logs, it seems that WAN is perfect and Port 4 (which is currently connected to the switch) is perfect. No drops. However ports 1-3 have experienced or two drops in the last fortnight which is really wierd considering that ports 1-3 have nothing plugged into them!

I have looked at all my other clients and none of them are experiencing drops on the other three ports. However, my other clients are using BT Hub version 5 which is integrated with the modem. This particular client cannot use the modem in that hub because its fibre to the premises so it works differently. Naturally!

I am not seeing any reason why the second router would also be showing dropped ports for ports 1-3( considering there is nothing plugged into them), but maybe the latest firmware update might have something to do with that? I will contact BT and ask them.

I think what I will do is get the BT hub connected up to the second nic in the gateway and next year replace all the BT Hubs with either Netgear or Vigor Draytek broadband routers.