> If I call listen and then try to send I get an error 10049 (Bind Address not
Are you sure you filled in the correct IP?
> If I call connect and then send, I see the data at the other end but I do
> not get any response in the DataAvailable callback.
No because of the error in previous paragraph it will not listen.
> If I open a second TWSocket to listen I get a callback.
So that is strange. Do you create all in code or do you have TWSocket
component on your form? If the latter then I suggest to delete it and
try with a fresh one. Maybe you have changed some properties and have a
keep a copy of it to check later what exact was changed !
Rgds, Wilfried [TeamICS]
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