diff --git a/kernel/trunk/network/loopback.inc b/kernel/trunk/network/loopback.inc
index 8eb22d9330..8b16866ac4 100644
--- a/kernel/trunk/network/loopback.inc
+++ b/kernel/trunk/network/loopback.inc
@@ -35,7 +35,7 @@ LOOPBACK_DEVICE:
         .packets_rx     dd 0
 
         .link_state     dd -1
-        .hwacc          dd 0
+        .hwacc          dd NET_HWACC_TCP_IPv4_IN + NET_HWACC_TCP_IPv4_OUT
 
         .namestr        db 'loopback', 0
 
diff --git a/kernel/trunk/network/stack.inc b/kernel/trunk/network/stack.inc
index 8fc5a570f3..661c992ad5 100644
--- a/kernel/trunk/network/stack.inc
+++ b/kernel/trunk/network/stack.inc
@@ -29,7 +29,7 @@ uglobal
 endg
 
 DEBUG_NETWORK_ERROR     = 1
-DEBUG_NETWORK_VERBOSE   = 1
+DEBUG_NETWORK_VERBOSE   = 0
 
 NET_DEVICES_MAX         = 16
 ARP_BLOCK               = 1             ; true or false
diff --git a/kernel/trunk/network/tcp_input.inc b/kernel/trunk/network/tcp_input.inc
index 1f0f3e4e5c..577df3f7a3 100644
--- a/kernel/trunk/network/tcp_input.inc
+++ b/kernel/trunk/network/tcp_input.inc
@@ -116,8 +116,8 @@ endl
         je      .checksum_ok
 
 ; re-calculate the checksum (if not already done by hw)
-;        test    [ebx + NET_DEVICE.hwacc], HWACC_TCP_IPv4_IN
-;        jnz     .checksum_ok
+        test    [ebx + NET_DEVICE.hwacc], NET_HWACC_TCP_IPv4_IN
+        jnz     .checksum_ok
 
         push    ecx esi
         pushw   [esi + TCP_header.Checksum]