diff --git a/intra/ipn/auto.go b/intra/ipn/auto.go
index a95c5157..128df55c 100644
--- a/intra/ipn/auto.go
+++ b/intra/ipn/auto.go
@@ -497,5 +497,9 @@ func maybeKeepAlive(c net.Conn) {
 	if settings.GetDialerOpts().LowerKeepAlive {
 		// adjust TCP keepalive config if c is a TCPConn
 		core.SetKeepAliveConfigSockOpt(c)
+	} else {
+		if tcpConn, ok := c.(*net.TCPConn); ok {
+			tcpConn.SetKeepAlive(false)
+		}
 	}
 }