diff --git a/RNS/Interfaces/LocalInterface.py b/RNS/Interfaces/LocalInterface.py
index b9c615d..b06a6b3 100644
--- a/RNS/Interfaces/LocalInterface.py
+++ b/RNS/Interfaces/LocalInterface.py
@@ -56,7 +56,7 @@ class LocalClientInterface(Interface):
     def __init__(self, owner, name, target_port = None, connected_socket=None):
         super().__init__()
 
-        self.HW_MTU = 32768
+        self.HW_MTU = 262144
 
         self.online  = False
         
diff --git a/RNS/Interfaces/TCPInterface.py b/RNS/Interfaces/TCPInterface.py
index 14d48c2..abaecba 100644
--- a/RNS/Interfaces/TCPInterface.py
+++ b/RNS/Interfaces/TCPInterface.py
@@ -31,7 +31,7 @@ import os
 import RNS
 
 class TCPInterface():
-    HW_MTU            = 2**20
+    HW_MTU            = 262144
 
 class HDLC():
     FLAG              = 0x7E