Hi

This is a really dumb question. I have a 2860 which I've had for quite a while, I've moved house and don't want it cabled up to a switch any more, I want to just plug devices into any of the 6 LAN ports but only port 1 assigns an IP, all the rest just flash the left light. How do I just set the whole thing to act like a simple switch???

That should be the default position, unless you've set up VLANs or limited your DHCP pool/server.