From my home vista business 64 machine, and over a sonicwall VPN although I can connect to my Network device at the office (my mapped network Y:\ drive), I can't see the two VISTA machines at the office. I can see the two XP machines. Discovery is turned on, on both machines at the office. I can see the office firewall 10.21.31.5 and also, when I log on to the network firewall, I can see the Vista box 10.21.31.107.Also, I can use remote desktop from home box and find and log on to the missing box at the office. And from that office box, I can see the home box, but not vice versa.I don't know if this affects anything, but a client had me install the Watchguard VPN software. I think it was after this that I lost sight of the two VISTA machines at the office. I've uninstalled it from the home machine but that had no effect.

Moving to Vista forum as the thread is not ConfigMgr OSD related.

Hi, I have answered your question on another thread: http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=4143288&SiteID=17 Thanks.