Minimserver without internet

[Ooteboe]

Is it possible to use a laptop with Minimserver-2 in an environment without internet? I then use the laptop with a small router that establishes the connection between the tablet with BubbleUPnP and the server-laptop. The router then has no WAN connection. My experience shows that the music is well sent to the tablet, but that I sometimes (not always) have a delay (of about 45 seconds) in starting a file. If I use the same configuration elsewhere with a connection to the WAN port, that delay is never there. Who knows why and how it can be remedied?

Thanks, Hans