i've got an sbs2003 system setup as our DC (we will call this Main server), a 2008 r2 being used as a data server and stores our redirected my docs and other files (call this data server), and another 2008 r2 being used for sql, sophos deployment server, and soon exchange (call this app server).
So my problem is part of the time i cant access the data and app servers from clients. Oddly when i cant connect to the data server i also cant connect to the app server but i can connect to the main server. We have a mix of Xp and win 7 machines. it seems to more often be the windows 7 machines we have issues with .
Any suggestions on where to start?