diff --git a/vnt/src/channel/punch.rs b/vnt/src/channel/punch.rs
index 20de4b3..4270f9a 100644
--- a/vnt/src/channel/punch.rs
+++ b/vnt/src/channel/punch.rs
@@ -323,9 +323,9 @@ impl Punch {
                 let max_k1 = 60;
                 //全局最多发送max_k2个包
                 let mut max_k2: usize = rand::thread_rng().gen_range(600..800);
-                if count > 1 {
+                if count > 2 {
                     //递减探测规模
-                    max_k2 = max_k2.mul(4).div(3).div(count).max(max_k1 as usize);
+                    max_k2 = max_k2.mul(2).div(count).max(max_k1 as usize);
                 }
                 let port = nat_info.public_ports.get(0).map(|e| *e).unwrap_or(0);
                 if nat_info.public_port_range < max_k1 * 3 {
diff --git a/vnt/src/handle/maintain/punch.rs b/vnt/src/handle/maintain/punch.rs
index 298d7a5..ee5490d 100644
--- a/vnt/src/handle/maintain/punch.rs
+++ b/vnt/src/handle/maintain/punch.rs
@@ -1,5 +1,6 @@
 use std::collections::HashMap;
 use std::net::Ipv4Addr;
+use std::ops::{Div, Mul};
 use std::sync::mpsc::{sync_channel, Receiver, SyncSender};
 use std::sync::Arc;
 use std::thread;
@@ -249,9 +250,11 @@ fn punch0(
             .lock()
             .get(&info.virtual_ip)
             .cloned()
-            .unwrap_or(0);
+            .unwrap_or(0)
+            .mul(2)
+            .div(3);
         let p2p_num = context.route_table.p2p_num(&info.virtual_ip);
-        let mut max_punch_interval = 70;
+        let mut max_punch_interval = 50;
         if p2p_num > 0 {
             if punch_count == 0 {
                 continue;