HomeGroup Folders Shared But Will Not Expand On Other Computer

I've placed two computers in a homegroup. Computer 1 can access Computer 2's shared folders, however, Computer 2 cannot access Computer 1's shared folders. When attempting to access the shared folders (with read/write permissions), I get the spinning wheel and then it just eventually says 1 item selected at the bottom of the explorer window and stops. The folders do not expand. They're on the same workgroup with no other computers, I read that they should be or something.