Hi! I recently sold 9 licenses of ATI ws(newest build, downloaded yersterday) to a costumer and i'm now doing the install, which has to be done in two days. I've successfully installed the ATI agent on 8 of 9 machines(couldn't connect to one) from the management console, installed group server och management console on their windows 2003 server. The images will be stored on a NAS. However all of the clients show the state "inaccessible" which worries me a bit. Also i created a group task and tried to execute it but it instantly gives me the error "Failed to run the task on computer.." error code 0x2C0000. I've openen 9876 TCP/UDP and 9877 UDP, file and printer sharing, and turned off simple file sharing on the clients(XP pro SP2 and 3) - all according to the user guide. The server doesn't have a software firewall of any kind and the hardware firewall have no LAN-to-LAN restrictions. IT is a workgroup, not domain, environment but all the client computers and the server have an identical backup account(full administrator rights). It is clearly a connectivity issue.. but where? how? Any ideas? Are there any ports that should be opened or services that should be run/stopped that was forgotten in the user guide?