QuickFixN disconnect during the day and could not reconnect

Question

We are using QuickFixN for sending orders to exchange and receiving execution reports.

If the VPN for exchange is disconnected during the day, the QuickFixN could not reconnect until the next day, despite having the ResetOnLogon and ResetOnDisconnected settings set to N.

We do not understand the reason: the sequence, or something else?

0171217-12:15:39.122 : Created session
20171217-12:15:39.129 : Connecting to 172.16.105.151 on port 10060
20171217-12:15:39.399 : Connection succeeded
20171217-12:15:39.423 : Initiated logon request
20171217-12:15:39.680 : Session FIX.4.2:NOOR->MBS disconnecting: System.Net.Sockets.SocketException (0x80004005): An existing connection was forcibly closed by the remote host
   at QuickFix.SocketInitiatorThread.ReadSome(Byte[] buffer, Int32 timeoutMilliseconds)
   at QuickFix.SocketInitiatorThread.Read()
20171217-12:15:41.140 : Connecting to 172.16.105.151 on port 10060
20171217-12:15:41.398 : Connection succeeded
20171217-12:15:41.399 : Initiated logon request
20171217-12:15:41.654 : Session FIX.4.2:NOOR->MBS disconnecting: System.Net.Sockets.SocketException (0x80004005): An existing connection was forcibly closed by the remote host
   at QuickFix.SocketInitiatorThread.ReadSome(Byte[] buffer, Int32 timeoutMilliseconds)
   at QuickFix.SocketInitiatorThread.Read()

Requests to exchange

20171217-12:15:39.423 : 8=FIX.4.2|9=65|35=A|34=7304|49=NOOR|52=20171217-12:15:39.415|56=MBS|98=0|108=30|10=192|
20171217-12:15:41.398 : 8=FIX.4.2|9=65|35=A|34=7305|49=NOOR|52=20171217-12:15:41.398|56=MBS|98=0|108=30|10=196|
20171217-12:15:43.397 : 8=FIX.4.2|9=65|35=A|34=7306|49=NOOR|52=20171217-12:15:43.397|56=MBS|98=0|108=30|10=198|
20171217-12:15:45.398 : 8=FIX.4.2|9=65|35=A|34=7307|49=NOOR|52=20171217-12:15:45.398|56=MBS|98=0|108=30|10=202|
20171217-12:15:47.399 : 8=FIX.4.2|9=65|35=A|34=7308|49=NOOR|52=20171217-12:15:47.399|56=MBS|98=0|108=30|10=206|
20171217-12:15:49.400 : 8=FIX.4.2|9=65|35=A|34=7309|49=NOOR|52=20171217-12:15:49.400|56=MBS|98=0|108=30|10=192|

Answer 1

First of All , thank you @rupweb for your replay and interest to give a hand .Second , there were two sources of this problem : 1 - before disconnecting the client system -that connects to remote party - it must logout. 2 - the executable file of client system must run from the same physical location each time.Because, the Fix generates file to keep the sequence on my device to start another handshaking and connecting next time.

Answer 2

Well the error means your counterparty is likely sending a TCP reset packet to you. So it looks like you're making the connection, but then failing the logon attempt and the result is the reset packet.

Is your username / password correct?