A few thoughts I thought might help. Have you tried changing your vpn client? Using the MS Windows vpn client you might have better luck. Windows 98 doesn't allow for much in the way of security, but you can do ipsec and l2tp with windows XP. Secondly check the MTU on the SecureRemote client, for pppoe it should be 1200. Make sure that you do no have the SecureRemote start up automatically on boot up. Start it manually only after your pppoe connection is made. Finally make sure you are on the latest version on the vpn client software and that your vpn appliance is at it's latest software build.