diff --git a/agent/crates/public/src/utils/net/windows.rs b/agent/crates/public/src/utils/net/windows.rs
index ce9e1073fbb..be82f56e4f4 100644
--- a/agent/crates/public/src/utils/net/windows.rs
+++ b/agent/crates/public/src/utils/net/windows.rs
@@ -140,6 +140,7 @@ pub fn get_interface_by_index_from_win32(if_index: u32) -> Result<Link> {
         );
 
         if result != 111 {
+            println!("{} {} GetAdaptersAddresses {}", file!(), line!(), result);
             return Err(Error::Windows(format!(
                 "Get buffer len by GetAdaptersAddresses failed error code {}",
                 result
@@ -159,6 +160,7 @@ pub fn get_interface_by_index_from_win32(if_index: u32) -> Result<Link> {
             &mut buffer_len,
         );
         if result != 0 {
+            println!("{} {} GetAdaptersAddresses {}", file!(), line!(), result);
             return Err(Error::Windows(format!(
                 "Get adapter addresses by GetAdaptersAddresses failed error code {}",
                 result
@@ -170,6 +172,7 @@ pub fn get_interface_by_index_from_win32(if_index: u32) -> Result<Link> {
     while !current_adapter.is_null() {
         let mac_address = unsafe {
             let adapter_ref = &*current_adapter;
+            println!("{} {} adapter ifindex {}", file!(), line!(), adapter_ref.Anonymous1.Anonymous.IfIndex);
             if if_index != adapter_ref.Anonymous1.Anonymous.IfIndex {
                 current_adapter = adapter_ref.Next;
                 continue;
@@ -326,6 +329,7 @@ pub fn route_get(dest_addr: IpAddr) -> Result<Route> {
                 "failed to run GetBestInterfaceEx function with destination address={} because of win32 error code({}),\n{}",
                 dest_addr, ret_code, WIN_ERROR_CODE_STR
             );
+            println!("{} {} {}", file!(), line!(), err_msg);
             return Err(Error::Windows(err_msg));
         }
 
@@ -351,6 +355,7 @@ pub fn route_get(dest_addr: IpAddr) -> Result<Route> {
                 "failed to run GetBestRoute2 function with destination address={} error: {}",
                 dest_addr, err
             );
+            println!("{} {} {}", file!(), line!(), err_msg);
             return Err(Error::Windows(err_msg));
         }
 
@@ -381,6 +386,7 @@ pub fn route_get(dest_addr: IpAddr) -> Result<Route> {
                 (src_addr, gateway)
             }
         };
+        println!("{} {} route_get({}) return {} {}", file!(), line!(), dest_addr, src_addr, best_if_index);
 
         Ok(Route {
             pref_src: Some(src_addr),
diff --git a/agent/src/utils/environment.rs b/agent/src/utils/environment.rs
index c4d4fb5dfaa..0c7ffbf4633 100644
--- a/agent/src/utils/environment.rs
+++ b/agent/src/utils/environment.rs
@@ -385,16 +385,22 @@ pub fn get_ctrl_ip_and_mac(dest: &IpAddr) -> Result<(IpAddr, MacAddr)> {
                 "failed getting control ip and mac from {}, because: {:?}, wait 1 second",
                 dest, tuple,
             );
+            println!(
+                "failed getting control ip and mac from {}, because: {:?}, wait 1 second",
+                dest, tuple,
+            );
             thread::sleep(Duration::from_secs(1));
             continue;
         }
         let (ip, mac) = tuple.unwrap();
+        println!("{} {} get_route_src_ip_and_mac return {} {}", file!(), line!(), ip, mac);
         let links = link_list();
         if links.is_err() {
             warn!(
                 "failed getting local interfaces, because: {:?}, wait 1 second",
                 links
             );
+            println!("{} {}", file!(), line!());
             thread::sleep(Duration::from_secs(1));
             continue;
         }
@@ -403,7 +409,9 @@ pub fn get_ctrl_ip_and_mac(dest: &IpAddr) -> Result<(IpAddr, MacAddr)> {
         // interface of the default route.
         for link in links.unwrap().iter() {
             if link.mac_addr == mac {
+                println!("{} {} ", file!(), line!());
                 if !link.flags.contains(LinkFlags::UP) {
+                    println!("{} {} {:?}", file!(), line!(), link);
                     let dest = if dest.is_ipv4() {
                         DNS_HOST_IPV4
                     } else {
@@ -412,6 +420,7 @@ pub fn get_ctrl_ip_and_mac(dest: &IpAddr) -> Result<(IpAddr, MacAddr)> {
                     let tuple = get_route_src_ip_and_mac(&dest);
                     if tuple.is_err() {
                         warn!("failed getting control ip and mac from {}, because: {:?}, wait 1 second", dest, tuple);
+                        println!("failed getting control ip and mac from {}, because: {:?}, wait 1 second", dest, tuple);
                         thread::sleep(Duration::from_secs(1));
                         // There are scenarios where multiple network cards use the same MAC address, so it is necessary to
                         // continue checking the other network cards.
@@ -419,6 +428,7 @@ pub fn get_ctrl_ip_and_mac(dest: &IpAddr) -> Result<(IpAddr, MacAddr)> {
                     }
                     return Ok(tuple.unwrap());
                 }
+                println!("{} {} ", file!(), line!());
                 break;
             }
         }