diff --git a/src/relay/udprelay/association.rs b/src/relay/udprelay/association.rs
index e708a61a..0d1fc6c6 100644
--- a/src/relay/udprelay/association.rs
+++ b/src/relay/udprelay/association.rs
@@ -203,10 +203,26 @@ impl ProxyAssociation {
     async fn connect_remote(context: &Context, svr_cfg: &ServerConfig, remote_udp: &UdpSocket) -> io::Result<()> {
         match svr_cfg.addr() {
             ServerAddr::SocketAddr(ref remote_addr) => {
-                remote_udp.connect(remote_addr).await?;
+                let res = remote_udp.connect(remote_addr).await;
+                if let Err(ref err) = res {
+                    error!(
+                        "UDP association UdpSocket::connect failed, addr: {}, err: {}",
+                        remote_addr, err
+                    );
+                }
+                res?;
             }
             ServerAddr::DomainName(ref dname, port) => {
-                lookup_then!(context, dname, *port, |addr| { remote_udp.connect(&addr).await })?;
+                lookup_then!(context, dname, *port, |addr| {
+                    let res = remote_udp.connect(&addr).await;
+                    if let Err(ref err) = res {
+                        error!(
+                            "UDP association UdpSocket::connect failed, addr: {}:{} (resolved: {}), err: {}",
+                            dname, port, addr, err
+                        );
+                    }
+                    res
+                })?;
             }
         }
 
diff --git a/src/relay/udprelay/redir_local.rs b/src/relay/udprelay/redir_local.rs
index 881e79f0..0a9a675a 100644
--- a/src/relay/udprelay/redir_local.rs
+++ b/src/relay/udprelay/redir_local.rs
@@ -142,7 +142,6 @@ pub async fn run(context: SharedContext) -> io::Result<()> {
 
         if let Err(err) = res {
             error!("failed to create UDP association, {}", err);
-            return Err(err);
         }
     }
 }
diff --git a/src/relay/udprelay/server.rs b/src/relay/udprelay/server.rs
index 5f0f6dee..ba550237 100644
--- a/src/relay/udprelay/server.rs
+++ b/src/relay/udprelay/server.rs
@@ -115,7 +115,6 @@ async fn listen(context: SharedContext, flow_stat: SharedServerFlowStatistic, sv
 
         if let Err(err) = res {
             error!("failed to create UDP association, {}", err);
-            return Err(err);
         }
     }
 }
diff --git a/src/relay/udprelay/socks5_local.rs b/src/relay/udprelay/socks5_local.rs
index d09d6172..ebd8b120 100644
--- a/src/relay/udprelay/socks5_local.rs
+++ b/src/relay/udprelay/socks5_local.rs
@@ -169,7 +169,6 @@ pub async fn run(context: SharedContext) -> io::Result<()> {
 
         if let Err(err) = res {
             error!("failed to create UDP association, {}", err);
-            return Err(err);
         }
     }
 }
diff --git a/src/relay/udprelay/tunnel_local.rs b/src/relay/udprelay/tunnel_local.rs
index 214e1d63..f7692bc5 100644
--- a/src/relay/udprelay/tunnel_local.rs
+++ b/src/relay/udprelay/tunnel_local.rs
@@ -122,7 +122,6 @@ pub async fn run(context: SharedContext) -> io::Result<()> {
 
         if let Err(err) = res {
             error!("failed to create UDP association, {}", err);
-            return Err(err);
         }
     }
 }