mSearch recv callback not getting triggered

[sresam89]

Once the app sends a mSearch, it waits for clients to respond, even after getting a response, it doesn't trigger the read socket function. It waits forever but receives no data to the app layer.

Select(lssdp->sock, &fd, &ts) doesn't return a value greater than 0 ever for unicast messages

Wireshark traces shows app receiving client response after an mSearch multicast message and soon after the app received the HTTP ok from client it issues a UDP packet back to the client to the same socket it issued the mSearch from and reports a failure (that's obvious client won't have that socket open anymore)

Also, it update the neighbors_list only via notify messages

Any help would be much appreciated