do i need to go to port forwarding ?
I only have a blu ray and my computer wired to the hub.
No, port forwarding has nothing to do with it, thats purely for routing incoming connections from the Internet, to devices on your network.
Look at the BluRay network settings option, and see if there is a manual network settings option. Most devices have one.
Then you can manually enter the following.
IP address 192.168.1.50
Subnet mask 255.255.255.0
Default gateway 192.168.1.254
DNS server 192.168.1.254
There is an issue where certain devices issue a DHCP request (Asking for IP address, gateway and DNS servers), and the composition of the request is not understood by the home hub 3, why this is, I do not know.
Some mobile devices like tablets, and smartphones seem to suffer most from this problem. Sometimes, after repeated requests, it sorts itself out.
Using static IP settings avoids this issue.