Disconnecting & connecting tcpsocket with proxy problem

[altVis]

1)Only fin,ack from my app and previous ack packet sequence and ack numbers equal.

2)Uh, i haven't understood a question.
fin,ack packet's rst flag is not set.
Or you talk about Qt class qtcpsocket's some kind of reset flag?

3) socket disconneting in the same way, but even after first syn|syn,ack|ack chain( i mean no http connection | http conenction established here )

[wysota]

1)Only fin,ack from my app and previous ack packet sequence and ack numbers equal.

I don't mean "equal". Do they match according to the TCP protocol? Syn numbers have to match with ACK numbers and vice-versa.

2)Uh, i haven't understood a question.
fin,ack packet's rst flag is not set.
Or you talk about Qt class qtcpsocket's some kind of reset flag?

Yes, I mean the rst flag. If it's not set, the connection is not terminated but gracefully closed.

3) socket disconneting in the same way, but even after first syn|syn,ack|ack chain( i mean no http connection | http conenction established here )

Could you provide a minimal compilable example reproducing the problem?

[altVis]

I don't mean "equal". Do they match according to the TCP protocol? Syn numbers have to match with ACK numbers and vice-versa.

Yes. Of course.

Yes, I mean the rst flag. If it's not set, the connection is not terminated but gracefully closed.

Yeap, i know. Same thing like with disconnectFromHost.

Could you provide a minimal compilable example reproducing the problem?

Well. For now i have solved problem in a horrible way:

delete socket;
socket = new QTcpSocket(this);
socket->connectToHost(...) // new connection;

delete socket;
socket = new QTcpSocket(this);
socket->connectToHost(...) // new connection;

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I'll try to write some code later.