I'm going nutz! I've had a home network for almost 4 years now, but the past several months have been hell! I cannot seem to get new computers on the network. They work fine on the net. I can ping ip #'s from all the machines, but to share files and "a" printer seem to be impossible. I first notice the problem when I broughtr my office laptop home and tried to share music. At first it worked fine w/o a hitch the 2nd time I brought it home I couldn't connect. I didn't reallycare though at that point I own the machine abnd the business. I'm the only IT person there. Bringing my laptop to the network was not critical. However, now I'm trying to set up my daughter with a new machine and she can surf but not connect to our network printer--attached to my wifes machine-- nor can she see the music files on my machine. I keep getting a message that indicates she needs to see the network administrator. She doesn't have permissions! I've rerun the network setup wizard a dozen times on allthree machines w/o any luck. My wife and I can see her computer but when we click on it we don't have permission to go there and she doesn't have permission to even see our computers! I'm using a Linksys wired router with a 4 port switch that is probably about a year and a half old. It seems to me that this is an sp2 or windows firewall problem, but I hesitate to turn off the firewall on all computers! We all run XP sp2 My daughter has norton internet security, while wife and I just have the norton antivirus. Does anyone have any ideas. I've run the XP network trouble shooter also!