for info, still not working. my ideas have now dried up…tried using my other account on a dual boot but still the same problems.
If you see an “incompatible library”, then the router is passing the _daap advertisements, but not the _rsp.
Do try an upgrade to 1586 as mentioned, and see if there are any options for IGMP (not icmp) or multicast in your router. Those are the things that are making it not work.