error message on reboot

every reboot, I get this message temporarily (it then seems to go away):

Stack trace:
(0062A1BA) _ssh_send_port_open
(00863846) C5073_3
(008658AE) ____ExceptionHandler
(00862668) __ExceptionHandler
(0008147F) ntdll.dll
(0006F02A) ntdll.dll.KiUserExceptionDispatcher
(0062A323) _get_ssh_exitcode
(006FC6EF) TSecureShell::HandleNetworkEvents
(006FC87A) TSecureShell::ProcessNetworkEvents
(006FBE6B) TSecureShell::WaitForData
(006F7275) TSecureShell::Init
(006F6B4A) TSecureShell::Open
(007348FB) TSFTPFileSystem::Open
(0076F49F) TTerminal::Reopen
(006C6A2D) TTerminalThread::TerminalReopenEvent
(006C19F4) TSignalThread::Execute
(000987A7) Userinterface::C20_0
(000152C2) KERNEL32.DLL.BaseThreadInitThunk
(0005F717) ntdll.dll
(0005F6DF) ntdll.dll

(00863EB1) C5073_3
(0086548B) _ReThrowException
(006F7383) TSecureShell::Init
(006F6B4A) TSecureShell::Open
(007348FB) TSFTPFileSystem::Open
(0076F49F) TTerminal::Reopen
(006C6A2D) TTerminalThread::TerminalReopenEvent
(006C19F4) TSignalThread::Execute
(000987A7) Userinterface::C20_0
(000152C2) KERNEL32.DLL.BaseThreadInitThunk
(0005F717) ntdll.dll
(0005F6DF) ntdll.dll
Authentication failed.

Thanks for your report.

Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.