diff --git a/adafruit_wiznet5k/adafruit_wiznet5k_socketpool.py b/adafruit_wiznet5k/adafruit_wiznet5k_socketpool.py
index e1e2512..0509a63 100644
--- a/adafruit_wiznet5k/adafruit_wiznet5k_socketpool.py
+++ b/adafruit_wiznet5k/adafruit_wiznet5k_socketpool.py
@@ -264,7 +264,7 @@ def __exit__(self, exc_type, exc_val, exc_tb) -> None:
         self._interface.release_socket(self._socknum)
         if self._sock_type == SocketPool.SOCK_STREAM:
             self._interface.write_snir(
-                self._socknum, 0xFF
+                self._socknum, 0xFF & (~wiznet5k.adafruit_wiznet5k.SNIR_DISCON)
             )  # Reset socket interrupt register.
             self._interface.socket_disconnect(self._socknum)
             mask = (