diff --git a/src/lib.rs b/src/lib.rs
index 2e47c49..1f6fbab 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -943,7 +943,7 @@ impl Default for Mode {
 pub mod bus;
 mod inactive_w5500;
 mod network;
-mod register;
+pub mod register;
 mod socket;
 mod udp;
 pub mod uninitialized_w5500;
diff --git a/src/register.rs b/src/register.rs
index 23b2be6..84131ed 100644
--- a/src/register.rs
+++ b/src/register.rs
@@ -52,11 +52,13 @@ pub mod socketn {
         Open = 0x01,
         Send = 0x20,
         Receive = 0x40,
+        Close = 0x10,
     }
 
     pub const INTERRUPT: u16 = 0x02;
     #[repr(u8)]
     pub enum Interrupt {
+        All = 0b11111111u8,
         SendOk = 0b010000u8,
         Receive = 0b00100u8,
     }
diff --git a/src/udp/mod.rs b/src/udp/mod.rs
index ec627a1..098e5bf 100644
--- a/src/udp/mod.rs
+++ b/src/udp/mod.rs
@@ -26,7 +26,8 @@ impl<SpiBus: ActiveBus, NetworkImpl: Network, SocketImpl: Socket>
         mut w5500: W5500<SpiBus, NetworkImpl>,
         socket: SocketImpl,
     ) -> Result<Self, SpiBus::Error> {
-        socket.reset_interrupt(&mut w5500.bus, socketn::Interrupt::SendOk)?;
+        socket.command(&mut w5500.bus, socketn::Command::Close)?;
+        socket.reset_interrupt(&mut w5500.bus, socketn::Interrupt::All)?;
         socket.set_source_port(&mut w5500.bus, port)?;
         socket.set_mode(&mut w5500.bus, socketn::Protocol::Udp)?;
         socket.command(&mut w5500.bus, socketn::Command::Open)?;
diff --git a/src/udp/outgoing_packet.rs b/src/udp/outgoing_packet.rs
index 8ebd612..f2596fd 100644
--- a/src/udp/outgoing_packet.rs
+++ b/src/udp/outgoing_packet.rs
@@ -6,7 +6,7 @@ use crate::udp::UdpSocket;
 use crate::IpAddress;
 
 pub struct OutgoingPacket<UdpSocket> {
-    udp_socket: UdpSocket,
+    pub udp_socket: UdpSocket,
     data_length: u16,
 }
 
diff --git a/src/uninitialized_w5500.rs b/src/uninitialized_w5500.rs
index cd5159f..5374251 100644
--- a/src/uninitialized_w5500.rs
+++ b/src/uninitialized_w5500.rs
@@ -62,6 +62,17 @@ impl<SpiBus: ActiveBus> UninitializedW5500<SpiBus> {
         mode_options: Mode,
     ) -> Result<(W5500<SpiBus, NetworkImpl>, OwnedSockets), InitializeError<SpiBus::Error>> {
         self.assert_chip_version(0x4)?;
+
+        // RESET
+        /*
+        let mut mode = [0b10000000];
+        self
+            .bus
+            .transfer_frame(register::COMMON, register::common::MODE, true, &mut mode)
+            .map_err(|e| InitializeError::SpiError(e))?;
+        */
+
+
         self.set_mode(mode_options)
             .map_err(|e| InitializeError::SpiError(e))?;
         network