Home Share Help

So I set up Home Sharing on one computer(A) and then set it up on the second computer(B). If I try to access the library of B on A, it works fine, but if I want to get music from A to B (what I wanted to do in the first place) it claims to be loading the library, then stops but gives no explanation as to why. I have tried everything; updated iTunes, checked wi-fi connections, firewalls, ID and passwords, and basicall everything listed on the Troubleshooting page for Home Share, and talked to a family memeber who works in IT with computers and can usually figure out/fix most of out home computer issues. Computer A is a Dell Inspiron 1525 and Computer B is a Dell Inspiron N4010 if that is relevent. Please help!!! Thanks!