PlayStation®Network Support

[MaxwellOz]

Hi there, I have a first gen PS3 and my connection always cuts out after a while (very random, could be 1 min could be 20min but always cuts out in a PS3 session).  I have changed settings on my router, upgraded firmware router and this doesnt seem to help. When it does cut out and I try the network settings on the PS3 it says I need to plug in Ethernet when it is already plugged in.  The connection is restored when I restart.  This is the only device that has issues with in my home network.  I am wondering whether this is a common problem of the first gen PS3 and whether I need to get a new PS3?  I own a Belkin router F5D8635-4.

Thanks.