If I guessed correctly, you seem to be talking about the TCP reopen issue, but your scenario is not clear to me.
You have an lwIP client connecting to a server Someone closes the connection, or it is lost somehow. The client retries the connection, does it succeed ? Apparently it does. If connection succeeds, then both ends must be able to talk to each other, if this does not happen, then it is not a socket reuse issue but a bug somewhere. If connection does not succeed, what is the reason, the result code ? Unless you setup so_reuseaddress, then you have to wait, but connection either succeeds or not, there is no "ok, connect but data flows in only one direction" unless there is a bug. What do you mean by "the port is in an invalid status" ? What API are you using ? RAW, netconn, socket ? _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users
