Hi I have ran a number of clients with pcanywhere behind an ISA server but I have one client that is causing me a bunch of problems. One problem I am having is a windows xp machine that is running host software will some times answer and sometimes will not. Just depends what mood it is in. The second problem is a windows98 machine that does answer but will not re-set when you disconnect. It gives out a communications error unable to attach to specified device. At first I thought it was the machine but I just found this out today. If I connect to the host on the local network directly without going thru the isa server the host works great. It answers, disconnects and re sets it self to answer again with no problems. But as soon as I connect to it from the outside, going thru the isa server, it will not reset it self and gives out that communications error. Then you just have to manually re run the host software and it runs again. This leads me to believe that something is going on with the isa server doing something with the signals. Just so you know both pc problems are behind the same isa server. I have checked the configuration with some other isa servers that run great with pcanywhere and everything looks the same. I am just stumped. Any ideas? Thanks Dale