diff --git a/README.md b/README.md
index c9e5087..c7787b0 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,8 @@
  [![GitHub](https://img.shields.io/github/license/KKRainbow/EasyTier)](https://github.com/KKRainbow/EasyTier/blob/main/LICENSE)
  [![GitHub last commit](https://img.shields.io/github/last-commit/KKRainbow/EasyTier)](https://github.com/KKRainbow/EasyTier/commits/main)
  [![GitHub issues](https://img.shields.io/github/issues/KKRainbow/EasyTier)](https://github.com/KKRainbow/EasyTier/issues)
- [![GitHub actions](https://github.com/KKRainbow/EasyTier/actions/workflows/rust.yml/badge.svg)](https://github.com/KKRainbow/EasyTier/actions/)
+ [![GitHub Core Actions](https://github.com/KKRainbow/EasyTier/actions/workflows/core.yml/badge.svg)](https://github.com/EasyTier/EasyTier/actions/workflows/core.yml)
+ [![GitHub GUI Actions](https://github.com/KKRainbow/EasyTier/actions/workflows/gui.yml/badge.svg)](https://github.com/EasyTier/EasyTier/actions/workflows/gui.yml)
  
 [简体中文](/README_CN.md) | [English](/README.md)
 
@@ -259,6 +260,7 @@ Before using the Client Config, you need to modify the Interface Address and Pee
  - [ZeroTier](https://www.zerotier.com/): A global virtual network for connecting devices.
  - [TailScale](https://tailscale.com/): A VPN solution aimed at simplifying network configuration.
  - [vpncloud](https://github.com/dswd/vpncloud): A P2P Mesh VPN
+ - [Candy](https://github.com/lanthora/candy): A reliable, low-latency, and anti-censorship virtual private network
  
  # License
  
diff --git a/README_CN.md b/README_CN.md
index 8016664..8ad9288 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -3,7 +3,8 @@
 [![GitHub](https://img.shields.io/github/license/KKRainbow/EasyTier)](https://github.com/KKRainbow/EasyTier/blob/main/LICENSE)
 [![GitHub last commit](https://img.shields.io/github/last-commit/KKRainbow/EasyTier)](https://github.com/KKRainbow/EasyTier/commits/main)
 [![GitHub issues](https://img.shields.io/github/issues/KKRainbow/EasyTier)](https://github.com/KKRainbow/EasyTier/issues)
-[![GitHub actions](https://github.com/KKRainbow/EasyTier/actions/workflows/rust.yml/badge.svg)](https://github.com/KKRainbow/EasyTier/actions/)
+[![GitHub Core Actions](https://github.com/KKRainbow/EasyTier/actions/workflows/core.yml/badge.svg)](https://github.com/EasyTier/EasyTier/actions/workflows/core.yml)
+[![GitHub GUI Actions](https://github.com/KKRainbow/EasyTier/actions/workflows/gui.yml/badge.svg)](https://github.com/EasyTier/EasyTier/actions/workflows/gui.yml)
 
 [简体中文](/README_CN.md) | [English](/README.md)
 
@@ -262,6 +263,7 @@ connected_clients:
 - [ZeroTier](https://www.zerotier.com/): 一个全球虚拟网络，用于连接设备。
 - [TailScale](https://tailscale.com/): 一个旨在简化网络配置的 VPN 解决方案。
 - [vpncloud](https://github.com/dswd/vpncloud): 一个 P2P Mesh VPN
+- [Candy](https://github.com/lanthora/candy): 可靠、低延迟、抗审查的虚拟专用网络
 
 # 许可证
 
diff --git a/easytier/src/common/config.rs b/easytier/src/common/config.rs
index 81960f3..78f05c1 100644
--- a/easytier/src/common/config.rs
+++ b/easytier/src/common/config.rs
@@ -205,7 +205,14 @@ impl TomlConfigLoader {
     pub fn new(config_path: &PathBuf) -> Result<Self, anyhow::Error> {
         let config_str = std::fs::read_to_string(config_path)
             .with_context(|| format!("failed to read config file: {:?}", config_path))?;
-        Self::new_from_str(&config_str)
+        let ret = Self::new_from_str(&config_str)?;
+        let old_ns = ret.get_network_identity();
+        ret.set_network_identity(NetworkIdentity::new(
+            old_ns.network_name,
+            old_ns.network_secret.unwrap_or_default(),
+        ));
+
+        Ok(ret)
     }
 }
 
diff --git a/easytier/src/tunnel/packet_def.rs b/easytier/src/tunnel/packet_def.rs
index 8cba431..9545ed2 100644
--- a/easytier/src/tunnel/packet_def.rs
+++ b/easytier/src/tunnel/packet_def.rs
@@ -156,6 +156,9 @@ const PAYLOAD_OFFSET_FOR_NIC_PACKET: usize = max(
     WG_TUNNEL_HEADER_SIZE,
 ) + PEER_MANAGER_HEADER_SIZE;
 
+// UDP Tunnel: TUN MTU + 24 (Easy) + 20 (Encrypted) + 8(UDP) + 20(IP) = TUN MTU + 72
+// TCP Tunnel: TUN MTU + 20 (Easy) + 20 (Encrypted) + 20(TCP) + 20(IP) = TUN MTU + 80
+
 const INVALID_OFFSET: usize = usize::MAX;
 
 const fn get_converted_offset(old_hdr_size: usize, new_hdr_size: usize) -> usize {