If you have one of these (see models below) and you are not at version 1.42.3, you may wish to upgrade your firmware by downloading the latest from [link|http://www.linksys.com/download/firmware.asp?fwid=1|Linksys]. The following were fixed in the last two versions:

Firmware Date : January 25,2002
Current Firmware : Version 1.42.3
Product PartNo : BEFSR11/BEFSR41/BEFSRU31

Ver #.\t\tDate\t\tDescription
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1.42.3\t\tJan 25,02\t

  1. Router can support PCs with small MTU settings to configure the router.
  2. Supports Applying settings without rebooting (Password, DHCP, MAC Filter, Forwarding, DMZ, MAC Addr.Clone)
  3. Added DNS and WINS setting in DHCP User Interface page.
  4. Support for UPnP forwarding loopback
  5. Support for multi-IPSec pass-through
  6. Fixed Nortel VPN pass-thru
  7. Forced MTU enabled and size = 1492,when PPPoE is enabled
  8. Added DHCP Lease time for LAN connections

1.41\t\tDec 19,01

  1. Added UPnP Support
  2. Added PPTP client for European users.
  3. Updated Web upgrade utility
  4. New WAN connection setting Interface in the SETUP page.
  5. Supports MSN messanger 4.5 (voice and file transfer without DMZ setting)