Your Outlook Express is misbehaving --Don't Panic

You might have noticed that your Outlook Express does not behave as it used to in the recent past. You get messages such as this one,



Then you try to diagnose and try to run ipconfig from your command prompt and then you see something you had not seen in the past. You see a new interface such as this one:
Tunnel adapter Teredo Tunneling Pseudo-Interface:

What the heck is this?

This is required when the full iPv6 comes into existence. It probably came with the Window's update. I run Windows XP with SP2. When this [Tunnel adapter Teredo Tunneling Pseudo-Interface:] is seen your test for ipconfig /all shows this (some of the addresses have been tampered in the pasted result):

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Jay>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Hodentek
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast Eth
ernet NIC
Physical Address. . . . . . . . . : xx-xx-xx-xx-xx-xx
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.1.100
Subnet Mask . . . . . . . . . . . : 255.255.255.0
IP Address. . . . . . . . . . . . : fe80::213:xxxx:xxxx:xxxx%4
Default Gateway . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
Primary WINS Server . . . . . . . : 192.168.1.101

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : FF-FF-FF-FF-FF-FF-FF-FF
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : fe80::ffff:ffff:fffd%5
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Automatic Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Automatic Tunneling Pseudo-Interface

Physical Address. . . . . . . . . : xx-xx-xx-xx
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : fe80::5efe:192.168.1.100%2
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Disabled

You may uninstall this feature, and there is extensive Microsoft Documentation for all sorts of Windows versions. The following command will uninstall this feature and will bring it back to how it used to be. After the command is run you will have to reboot for it to become effective.

C:\Documents and Settings\Jay>netsh
netsh>interface ipv6 uninstall
A reboot is required to complete this action.