diff --git a/cli/dts/lib.deno.unstable.d.ts b/cli/dts/lib.deno.unstable.d.ts
index 08b3ca80c0..221ecee605 100644
--- a/cli/dts/lib.deno.unstable.d.ts
+++ b/cli/dts/lib.deno.unstable.d.ts
@@ -1049,7 +1049,10 @@ declare namespace Deno {
    *
    * Requires `allow-net` permission for "tcp" and `allow-read` for "unix". */
   export function connect(
-    options: ConnectOptions | UnixConnectOptions,
+    options: ConnectOptions,
+  ): Promise<TcpConn>;
+  export function connect(
+    options: UnixConnectOptions,
   ): Promise<Conn>;
 
   export interface ConnectTlsOptions {
@@ -1066,21 +1069,6 @@ declare namespace Deno {
     alpnProtocols?: string[];
   }
 
-  export interface Conn {
-    /**
-     * **UNSTABLE**: new API, see https://github.com/denoland/deno/issues/13617.
-     *
-     * Enable/disable the use of Nagle's algorithm. Defaults to true.
-     */
-    setNoDelay(nodelay?: boolean): void;
-    /**
-     * **UNSTABLE**: new API, see https://github.com/denoland/deno/issues/13617.
-     *
-     * Enable/disable keep-alive functionality.
-     */
-    setKeepAlive(keepalive?: boolean): void;
-  }
-
   export interface TlsHandshakeInfo {
     /** **UNSTABLE**: new API, yet to be vetted.
      *
diff --git a/cli/tests/unit/tls_test.ts b/cli/tests/unit/tls_test.ts
index 26a1668013..07ffcd487a 100644
--- a/cli/tests/unit/tls_test.ts
+++ b/cli/tests/unit/tls_test.ts
@@ -1075,7 +1075,7 @@ Deno.test(
     const port = 587;
     const encoder = new TextEncoder();
 
-    let conn = await Deno.connect({
+    const conn = await Deno.connect({
       hostname,
       port,
     });
@@ -1102,9 +1102,9 @@ Deno.test(
     // Received the message that the server is ready to establish TLS
     assertEquals(line, "220 2.0.0 Ready to start TLS");
 
-    conn = await Deno.startTls(conn, { hostname });
-    writer = new BufWriter(conn);
-    reader = new TextProtoReader(new BufReader(conn));
+    const tlsConn = await Deno.startTls(conn, { hostname });
+    writer = new BufWriter(tlsConn);
+    reader = new TextProtoReader(new BufReader(tlsConn));
 
     // After that use TLS communication again
     await writer.write(encoder.encode(`EHLO ${hostname}\r\n`));
@@ -1115,7 +1115,7 @@ Deno.test(
       if (line.startsWith("250 ")) break;
     }
 
-    conn.close();
+    tlsConn.close();
   },
 );
 
diff --git a/cli/tsc.rs b/cli/tsc.rs
index 9500aae74d..bff2f3404d 100644
--- a/cli/tsc.rs
+++ b/cli/tsc.rs
@@ -1148,6 +1148,7 @@ mod tests {
     let actual = test_exec(&specifier)
       .await
       .expect("exec should not have errored");
+    eprintln!("diagnostics {:#?}", actual.diagnostics);
     assert!(actual.diagnostics.is_empty());
     assert!(actual.emitted_files.is_empty());
     assert!(actual.maybe_tsbuildinfo.is_some());
@@ -1160,6 +1161,7 @@ mod tests {
     let actual = test_exec(&specifier)
       .await
       .expect("exec should not have errored");
+    eprintln!("diagnostics {:#?}", actual.diagnostics);
     assert!(actual.diagnostics.is_empty());
     assert!(actual.emitted_files.is_empty());
     assert!(actual.maybe_tsbuildinfo.is_some());
@@ -1172,6 +1174,7 @@ mod tests {
     let actual = test_exec(&specifier)
       .await
       .expect("exec should not have errored");
+    eprintln!("diagnostics {:#?}", actual.diagnostics);
     assert!(actual.diagnostics.is_empty());
   }
 }
diff --git a/ext/net/01_net.js b/ext/net/01_net.js
index 2970dd8179..8c17942dae 100644
--- a/ext/net/01_net.js
+++ b/ext/net/01_net.js
@@ -163,14 +163,6 @@
       return shutdown(this.rid);
     }
 
-    setNoDelay(nodelay = true) {
-      return core.opSync("op_set_nodelay", this.rid, nodelay);
-    }
-
-    setKeepAlive(keepalive = true) {
-      return core.opSync("op_set_keepalive", this.rid, keepalive);
-    }
-
     get readable() {
       if (this.#readable === undefined) {
         this.#readable = readableStreamForRid(this.rid);
@@ -186,6 +178,16 @@
     }
   }
 
+  class TcpConn extends Conn {
+    setNoDelay(nodelay = true) {
+      return core.opSync("op_set_nodelay", this.rid, nodelay);
+    }
+
+    setKeepAlive(keepalive = true) {
+      return core.opSync("op_set_keepalive", this.rid, keepalive);
+    }
+  }
+
   class Listener {
     #rid = 0;
     #addr = null;
@@ -205,6 +207,9 @@
 
     async accept() {
       const res = await opAccept(this.rid, this.addr.transport);
+      if (this.addr.transport == "tcp") {
+        return new TcpConn(res.rid, res.remoteAddr, res.localAddr);
+      }
       return new Conn(res.rid, res.remoteAddr, res.localAddr);
     }
 
@@ -318,12 +323,13 @@
       });
     }
 
-    return new Conn(res.rid, res.remoteAddr, res.localAddr);
+    return new TcpConn(res.rid, res.remoteAddr, res.localAddr);
   }
 
   window.__bootstrap.net = {
     connect,
     Conn,
+    TcpConn,
     opConnect,
     listen,
     opListen,
diff --git a/ext/net/lib.deno_net.d.ts b/ext/net/lib.deno_net.d.ts
index 0384520555..ab779a1ff2 100644
--- a/ext/net/lib.deno_net.d.ts
+++ b/ext/net/lib.deno_net.d.ts
@@ -143,7 +143,22 @@ declare namespace Deno {
    * ```
    *
    * Requires `allow-net` permission for "tcp". */
-  export function connect(options: ConnectOptions): Promise<Conn>;
+  export function connect(options: ConnectOptions): Promise<TcpConn>;
+
+  export interface TcpConn extends Conn {
+    /**
+     * **UNSTABLE**: new API, see https://github.com/denoland/deno/issues/13617.
+     *
+     * Enable/disable the use of Nagle's algorithm. Defaults to true.
+     */
+    setNoDelay(nodelay?: boolean): void;
+    /**
+     * **UNSTABLE**: new API, see https://github.com/denoland/deno/issues/13617.
+     *
+     * Enable/disable keep-alive functionality.
+     */
+    setKeepAlive(keepalive?: boolean): void;
+  }
 
   export interface ConnectTlsOptions {
     /** The port to connect to. */