My FVP-5000T is normally connected to the internet via wired LAN but the connection has suddenly failed. However, other devices on the LAN are still able to access the internet. The machine reports that it can access the network but not the internet. Attempts to reestablish the LAN connection (using DHCP) including rebooting the router and PVR, return the same report. If I then configure a WLAN connection, access to the internet is restored. This will do but is not ideal. I have checked with an older HDR-FOXT2 machine and it is behaving in the same way. What is going on?