You only need that loopback adapter if you don't have a lan connection.Oh this is some news to me.
I have configured a static IP for my server in multi-seat configuration -but I configured that in my router, so it's always giving the same IP for my server using DHCP. And I'm using WOL on the server so everytime it wakes up, it rerequests the IP via DHCP. My router is sometimes pretty slow in admitting the IPs and it might take some time until the network connection is properly up. Reading that older thread, I understood that this can cause problems for the TV-server. (I'm used static IP via DHCP so I don't need to configure DNS servers &gateways on my server... yes, they are easy to configure, but I had no reason...until now I guess...)
Shouldn't this loopback adapter/reg.edit/truely static IP(not via DHCP) be pretty much mandatory partof installation/requirement for Mediaportal?