diff --git a/binaries/aarch64/tpws b/binaries/aarch64/tpws
index d2a4be7..1747c49 100755
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diff --git a/binaries/armhf/tpws b/binaries/armhf/tpws
index c3369db..25cf79e 100755
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diff --git a/binaries/mips32r1-lsb/tpws b/binaries/mips32r1-lsb/tpws
index 858e273..2a33515 100755
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diff --git a/binaries/mips32r1-msb/tpws b/binaries/mips32r1-msb/tpws
index 893dbbd..05d09fe 100755
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diff --git a/binaries/mips64r2-msb/tpws b/binaries/mips64r2-msb/tpws
index f4b2e2e..cab4faf 100755
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diff --git a/binaries/ppc/tpws b/binaries/ppc/tpws
index 2aee02f..3683d71 100755
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diff --git a/binaries/x86/tpws b/binaries/x86/tpws
index 49e027e..976ba49 100755
Binary files a/binaries/x86/tpws and b/binaries/x86/tpws differ
diff --git a/binaries/x86_64/tpws b/binaries/x86_64/tpws
index 4a136f1..a6bbdca 100755
Binary files a/binaries/x86_64/tpws and b/binaries/x86_64/tpws differ
diff --git a/tpws/tpws_conn.c b/tpws/tpws_conn.c
index 7c9b780..c5021ac 100644
--- a/tpws/tpws_conn.c
+++ b/tpws/tpws_conn.c
@@ -91,6 +91,14 @@ static bool socks_send_rep_errno(uint8_t ver, int fd, int errn)
 {
 	return ver==5 ? socks5_send_rep_errno(fd,errn) : socks4_send_rep_errno(fd, errn);
 }
+static int get_so_error(int fd)
+{
+	int errn;
+	socklen_t optlen = sizeof(errn);
+	if(getsockopt(fd, SOL_SOCKET, SO_ERROR, &errn, &optlen) == -1)
+		errn=errno;
+	return errn;
+}
 static bool proxy_remote_conn_ack(tproxy_conn_t *conn)
 {
 	// if proxy mode acknowledge connection request
@@ -102,10 +110,7 @@ static bool proxy_remote_conn_ack(tproxy_conn_t *conn)
 		case CONN_TYPE_SOCKS:
 			if (conn->partner->socks_state==S_WAIT_CONNECTION)
 			{
-				int errn;
-				socklen_t optlen = sizeof(errn);
-				if(getsockopt(conn->fd, SOL_SOCKET, SO_ERROR, &errn, &optlen) == -1)
-					errn=errno;
+				int errn=get_so_error(conn->fd);
 				conn->partner->socks_state=S_TCP;
 				bres = socks_send_rep_errno(conn->partner->socks_ver,conn->partner->fd, errn);
 				DBGPRINT("socks connection acknowledgement. bres=%d remote_errn=%d remote_fd=%d local_fd=%d",bres,errn,conn->fd,conn->partner->fd)
@@ -1310,8 +1315,16 @@ int event_loop(int listen_fd)
 				{
 					if (events[i].events & (EPOLLHUP|EPOLLERR))
 					{
-						if (events[i].events & EPOLLERR) DBGPRINT("EPOLLERR")
-						if (events[i].events & EPOLLHUP) DBGPRINT("EPOLLHUP")
+						int errn = get_so_error(conn->fd);
+						const char *se;
+						switch (events[i].events & (EPOLLHUP|EPOLLERR))
+						{
+							case EPOLLERR: se="EPOLLERR"; break;
+							case EPOLLHUP: se="EPOLLHUP"; break;
+							case EPOLLHUP|EPOLLERR: se="EPOLLERR EPOLLHUP"; break;
+							default: se=NULL;
+						}
+						VPRINT("Socket fd=%d (partner_fd=%d, remote=%d) %s so_error=%d (%s)",conn->fd,conn->partner ? conn->partner->fd : 0,conn->remote,se,errn,strerror(errn));
 						proxy_remote_conn_ack(conn);
 						read_all_and_buffer(conn,3);
 						conn_close_with_partner_check(&conn_list,&close_list,conn);