diff --git a/cli/dts/lib.deno.ns.d.ts b/cli/dts/lib.deno.ns.d.ts
index 9c47cb87938483..738d0ba54be218 100644
--- a/cli/dts/lib.deno.ns.d.ts
+++ b/cli/dts/lib.deno.ns.d.ts
@@ -1726,44 +1726,40 @@ declare namespace Deno {
    * Requires `allow-write` permission. */
   export function truncate(name: string, len?: number): Promise<void>;
 
-  export interface Addr {
-    transport: string;
-  }
-
-  export interface NetAddr extends Addr {
+  export interface NetAddr {
     transport: "tcp" | "udp";
     hostname: string;
     port: number;
   }
 
-  export interface UnixAddr extends Addr {
+  export interface UnixAddr {
     transport: "unix" | "unixpacket";
     path: string;
   }
 
+  export type Addr = NetAddr | UnixAddr;
+
   /** A generic network listener for stream-oriented protocols. */
-  export interface Listener<Address extends Addr = Addr>
-    extends AsyncIterable<Conn<Address>> {
+  export interface Listener extends AsyncIterable<Conn> {
     /** Waits for and resolves to the next connection to the `Listener`. */
-    accept(): Promise<Conn<Address>>;
+    accept(): Promise<Conn>;
     /** Close closes the listener. Any pending accept promises will be rejected
      * with errors. */
     close(): void;
     /** Return the address of the `Listener`. */
-    readonly addr: Address;
+    readonly addr: Addr;
 
     /** Return the rid of the `Listener`. */
     readonly rid: number;
 
-    [Symbol.asyncIterator](): AsyncIterableIterator<Conn<Address>>;
+    [Symbol.asyncIterator](): AsyncIterableIterator<Conn>;
   }
 
-  export interface Conn<Address extends Addr = Addr>
-    extends Reader, Writer, Closer {
+  export interface Conn extends Reader, Writer, Closer {
     /** The local address of the connection. */
-    readonly localAddr: Address;
+    readonly localAddr: Addr;
     /** The remote address of the connection. */
-    readonly remoteAddr: Address;
+    readonly remoteAddr: Addr;
     /** The resource ID of the connection. */
     readonly rid: number;
     /** Shuts down (`shutdown(2)`) the write side of the connection. Most
@@ -1791,7 +1787,7 @@ declare namespace Deno {
    * Requires `allow-net` permission. */
   export function listen(
     options: ListenOptions & { transport?: "tcp" },
-  ): Listener<NetAddr>;
+  ): Listener;
 
   export interface ListenTlsOptions extends ListenOptions {
     /** Server certificate file. */
@@ -1810,7 +1806,7 @@ declare namespace Deno {
    * ```
    *
    * Requires `allow-net` permission. */
-  export function listenTls(options: ListenTlsOptions): Listener<NetAddr>;
+  export function listenTls(options: ListenTlsOptions): Listener;
 
   export interface ConnectOptions {
     /** The port to connect to. */
@@ -1833,7 +1829,7 @@ declare namespace Deno {
    * ```
    *
    * Requires `allow-net` permission for "tcp". */
-  export function connect(options: ConnectOptions): Promise<Conn<NetAddr>>;
+  export function connect(options: ConnectOptions): Promise<Conn>;
 
   export interface ConnectTlsOptions {
     /** The port to connect to. */
@@ -1859,9 +1855,7 @@ declare namespace Deno {
    *
    * Requires `allow-net` permission.
    */
-  export function connectTls(
-    options: ConnectTlsOptions,
-  ): Promise<Conn<NetAddr>>;
+  export function connectTls(options: ConnectTlsOptions): Promise<Conn>;
 
   /** Shutdown socket send operations.
    *
diff --git a/cli/dts/lib.deno.unstable.d.ts b/cli/dts/lib.deno.unstable.d.ts
index 96280af8f1bc21..8d4c1f87d7f897 100644
--- a/cli/dts/lib.deno.unstable.d.ts
+++ b/cli/dts/lib.deno.unstable.d.ts
@@ -874,26 +874,23 @@ declare namespace Deno {
   /** **UNSTABLE**: new API, yet to be vetted.
    *
    * A generic transport listener for message-oriented protocols. */
-  export interface DatagramConn<Address extends Addr = Addr>
-    extends AsyncIterable<[Uint8Array, Address]> {
+  export interface DatagramConn extends AsyncIterable<[Uint8Array, Addr]> {
     /** **UNSTABLE**: new API, yet to be vetted.
      *
      * Waits for and resolves to the next message to the `UDPConn`. */
-    receive(p?: Uint8Array): Promise<[Uint8Array, Address]>;
+    receive(p?: Uint8Array): Promise<[Uint8Array, Addr]>;
     /** UNSTABLE: new API, yet to be vetted.
      *
      * Sends a message to the target. */
-    send(p: Uint8Array, addr: Address): Promise<number>;
+    send(p: Uint8Array, addr: Addr): Promise<number>;
     /** UNSTABLE: new API, yet to be vetted.
      *
      * Close closes the socket. Any pending message promises will be rejected
      * with errors. */
     close(): void;
     /** Return the address of the `UDPConn`. */
-    readonly addr: Address;
-    [Symbol.asyncIterator](): AsyncIterableIterator<
-      [Uint8Array, Address]
-    >;
+    readonly addr: Addr;
+    [Symbol.asyncIterator](): AsyncIterableIterator<[Uint8Array, Addr]>;
   }
 
   export interface UnixListenOptions {
@@ -912,7 +909,7 @@ declare namespace Deno {
    * Requires `allow-read` and `allow-write` permission. */
   export function listen(
     options: UnixListenOptions & { transport: "unix" },
-  ): Listener<UnixAddr>;
+  ): Listener;
 
   /** **UNSTABLE**: new API, yet to be vetted
    *
@@ -933,7 +930,7 @@ declare namespace Deno {
    * Requires `allow-net` permission. */
   export function listenDatagram(
     options: ListenOptions & { transport: "udp" },
-  ): DatagramConn<NetAddr>;
+  ): DatagramConn;
 
   /** **UNSTABLE**: new API, yet to be vetted
    *
@@ -949,7 +946,7 @@ declare namespace Deno {
    * Requires `allow-read` and `allow-write` permission. */
   export function listenDatagram(
     options: UnixListenOptions & { transport: "unixpacket" },
-  ): DatagramConn<UnixAddr>;
+  ): DatagramConn;
 
   export interface UnixConnectOptions {
     transport: "unix";
@@ -972,11 +969,8 @@ declare namespace Deno {
    *
    * Requires `allow-net` permission for "tcp" and `allow-read` for "unix". */
   export function connect(
-    options: ConnectOptions,
-  ): Promise<Conn<NetAddr>>;
-  export function connect(
-    options: UnixConnectOptions,
-  ): Promise<Conn<UnixAddr>>;
+    options: ConnectOptions | UnixConnectOptions,
+  ): Promise<Conn>;
 
   export interface StartTlsOptions {
     /** A literal IP address or host name that can be resolved to an IP address.
@@ -1005,7 +999,7 @@ declare namespace Deno {
   export function startTls(
     conn: Conn,
     options?: StartTlsOptions,
-  ): Promise<Conn<NetAddr>>;
+  ): Promise<Conn>;
 
   export interface ListenTlsOptions {
     /** **UNSTABLE**: new API, yet to be vetted.
diff --git a/cli/tests/unit/net_test.ts b/cli/tests/unit/net_test.ts
index 5f9fc916afd109..725bb9684e4666 100644
--- a/cli/tests/unit/net_test.ts
+++ b/cli/tests/unit/net_test.ts
@@ -18,12 +18,6 @@ unitTest({ perms: { net: true } }, function netTcpListenClose(): void {
   listener.close();
 });
 
-unitTest({ perms: { net: true } }, function netListenPortType(): void {
-  const listener = Deno.listen({ port: 0, transport: "tcp" });
-  listener.addr.port;
-  listener.close();
-});
-
 unitTest(
   {
     perms: { net: true },
diff --git a/runtime/js/40_tls.js b/runtime/js/40_tls.js
index ea094b6a74a39a..4fafe90792c3f0 100644
--- a/runtime/js/40_tls.js
+++ b/runtime/js/40_tls.js
@@ -68,12 +68,6 @@
     conn,
     { hostname = "127.0.0.1", certFile } = {},
   ) {
-    if (
-      !(conn.localAddr.transport === "tcp" ||
-        conn.localAddr.transport === "udp")
-    ) {
-      throw new TypeError(`conn is not a valid network connection`);
-    }
     const res = await opStartTls({
       rid: conn.rid,
       hostname,