I have 3 machines. Two of them running Windows 7 Ultimate 64-bit, let's call them Windows 7-one and Windows 7-two. One is running Windows XP SP3, let's call that one Windows XP-one.
I've shared some folders on one of the Windows 7 machine (Windows 7-one). The XP machine (Windows XP-one) has no problems connecting to the machine and I can view and access the shared folders.
Just doing start->run, typing \Windows 7-one, a window pops up, showing the shared folders, just as expected.
The other Windows 7 machine (Windows 7-two) on the other hand, not so much. If I try to open \Windows 7-one I get a prompt for a username/password with an error message at the bottom saying "Logon failure: unknown user name or bad password".
Why? I thought I had enabled anonymous access?
What I've done: Enabled the guest account, shared the folder, giving "everyone" full-control permissions, enabled everything under the advanced sharing options, etc. etc. etc.
The only thing I've not done is restarted Windows 7-one, perhaps that'll work ....
EDIT Just figured out one thing that might have something to do with this. All three machines have a user account with the same username. On Windows 7-one and Windows XP-one, it's got a blank password. The account on the Windows 7-two machine is password protected. Should that matter at all? I cannot see why it should.