said by NetFixer
Do the PC(s) behind your router get public IPv6 addresses, gateways, etc, but IPv6 connectivity terminates at the router? Or do the PC(s) only get private IPv4 IP addresses, gateways, etc?[/BQUOTE :
Yes, PC's receive public IPv6 addresses and can communicate amongst themselves, there's just no route beyond the E3200.
PM me your cable modem MAC address so I can look at this.. I need to find out if the issue is a cable modem issue or what the problem is.