controller cannot see minimServer

[psme]

This morning my PC and QNAP minimServer couldn't be found again. So I run some tests. And IMO it seems minimServer lost the socket 1900 bound, while foobar2000 and Asset UPnP work fine on 1900. It's not my network problem that's quite sure!

Attached a wireshark capture screen:
- close all app on iPad, iPad IP is 192.168.1.11 (DHCP)
- start capture on PC, PC IP is 192.168.1.120 (static IP)
- start Kinksy on iPad, Kinsky found foobar2000 and Asset UPnP servers, couldn't see both PC and QNAP minimServer
- stop capture

As you can see, my PC receives SSDP fine, and I suppose foobar2000 and Asset UPnP responding fine.

Also attached a netstat -nab capture. There are only 4 programs bounded 1900. They are 3 foobar2000 (Yes, I have 3 foobar2000 instant on the PC!), and a Asset UPnP, but no java for minimServer.

Both PC and QNAP minimServer still work fine if I wait long enough for their 15mins apart "alive" message.