You might recall the problem I sent in last week. Well my laptop with msn 4.7 does not allow me to use the Phone facility while at the office. Everyone seemed to indicate that the version number is the problem. So I decided to take this laptop home and put it behind my home ISA setup. So I plugged in, ran ipconfig /release and ipconfig /renew set the firewall client to point to my home isa server and tried to connect to MSN phone. TO my amazement it worked . Is there someone who has a tool that will allow me to compare the two ISA setups? Visually they look the same except for the item below and that my home setup is SBS2000 (all one server) while office is split The only visible difference is that my office setup has 'Ask unauthenticated users for identification' checked in outgoing requests while my home setup does not. Thanks in advance William