I have made no changes to the ports so leave them as default - I am sure you will but please read all of this before doing anything - on the tv go into menu>network>Allshare settings>media and set it to ON, you should also see a list of all allowed ip addresses
Highlight them one at a time and delete all of them in this way then go to menu>network and run through the setup process again - this will force the tv to assign the VU a new ip address for sharing.
once this is done you can check the ip address list by going into menu>network>Allshare settings>media and somewhere in there should be the ip address of your vu listed as
Device xx 192.168.x.x allowed
(x is dependant on your network)
Cross check this ip address is the VU.
If at this point you do not see your VU ip exit all menu's and put the tv into standby and reboot the vu, once it has fully booted the switch the tv back on (give it a minute to make sure it is back on the network) and check again on the TV that the vu ip address is showing up. You may also have to reboot your router (if you reboot the router check that it hasnt changed the VU ip address because of DCHP)
Assuming all is now good with the ip address on the tv go into smart hub and select Allshare and you should see your VU folders and the sharename ViX:1 will be at the top left of the screen.
For test purposes I would only use one of the 2 TV's and leave the other unplugged just to make sure the Allshare cannot get confused as it can try to link to the other TV.
Let me know how you get on