Greg Smith wrote:
Additionally, and this is the important part, I want to resume listening for a new connection. So I call pppapi_listen() again at the end of my link status callback function (which happens to look /a lot/ like Sylvain's example in ppp.txt :-) ).
Coming back to the original post, you must *not* call API functions from tcpip_thread. Maybe this is your problem. I think the callback is called from tcpip_thread, so by blocking on a semaphore effectively blocks the whole stack.
The API functions are meant to get you into the tcpip_thread to call things. If you already *are* in this thread, call 'ppp_listen()' instead.
Simon
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