With the introduction of Windows2008 Microsoft left out MD5 support, but if you would like to use old devices such as IP Phones or Printers which are not supporting PEAP authenticaion this addition would be very useful.

You need to create a text file named such as MD5.reg and copy the script below inside this file.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\RasMan\PPP\EAP\4]
“RolesSupported”=dword:0000000a
“FriendlyName”=”MD5-Challenge”
“Path”=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,\
00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,52,00,\
61,00,73,00,63,00,68,00,61,00,70,00,2e,00,64,00,6c,00,6c,00,00,00
“InvokeUsernameDialog”=dword:00000001
“InvokePasswordDialog”=dword:00000001