MessageHi John, got rid of the Enternet Software and installed RASPPPOE, now am able to send mail to some addresses and receive mail from some addresses, why ? I read the guide entitled ""ISA Server 2000 and DSL by David Fosbenner"" and he says this: " Find Your MTU Size Determine the MTU size that you need using this command from the ISA server: ping -f -l 1400 and then keep increasing it... he says 1432 was the good one and you said 1408 ??? what do I need to ping, the external ip address or what ? ping -f -l 1400 200.67.98.184 which is the ip the DSL modem got and it worked ping -f -l 1402 200.67.98.184 worked ping -f -l 1403 200.67.98.184 worked ping -f -l 1408 200.67.98.184 worked ping -f -l 1432 200.67.98.184 worked Isn't it supossed to ping fine only on one of this numbers or what am I doing wrong ? Also, now I have to meet complex password requirements when creating new users but I never enabled such things, why is this happening ? only thing prior to that was: The Wan Nic was listed at the top on the advanced configuration and was unable to create users then I moved the Lan Nic to the top and am able to create users but they all need to have complex passwords, did the order of the network adapters caused this? Thanks a lot.