Windows 7: Network Visible But Can't Share Xp to Win7

I have a network with 6 XP Pro SP3 systems ans 2- Windows 7 64 Ultimate systems. I have them set up on a Work Group with all of the same names and print and file sharing enabled.

When I look at the network from the network icon I see the groups name and all of the systems are listed. I can share files between all of the XP systems from anywhere including the Windows 7 machines. The problem is that When I try to access the Windows 7 machines from the XP systems I receive the error you are not authorized to access this system. I have the systems set up as a work network and have turned off the passwords for sharing.

I have completely turned off the firewall and it still won't let me access the Windows 7 machines. I am listed as the administrator on all of the machines and they all are set to allow anyone to change things.

Anyone have any ideas? I am pretty sure that this just happened after one of the latest MS updates but I can't seem to find where the problem is. Any help would be greatly appreciated.

Hello gingem,

Try these recommendations:

Create Identical UserNames and Passwords for both computers.

On both computers make sure that DHCP is enabled. http://iyogibusiness.spaces.live.com...1ACB!174.entry

Netbios need to be enabled on both computers.
http://ttcshelbyville.wordpress.com/...os-over-tcpip/

Try accessing the Shared Folder/Drive by using the IPAddress of the computer that you're trying to access.
Click on Start and type \\IPAddress\SharedFolderName then press enter. An alternative to the Shared Folder Name could be C or C$ which is the Local C Drive of the computer if you have the entire drive shared.

Please post an update.

Thank you for your help. I will check these, (I am pretty sure they are already set that way). I will let you know the outcome. Again thank you very much for your help.