Network connection failed and shows access denied

The following tips may work if you cannot logon to your network with error message “access denied”

If you've always Denied errors when trying to connect to a computer, with windows XP,
You know, and you have the correct user names and passwords on the computer,
the solution may be simple registry editing, like below:

• From the start menu go to RUN, and type REGEDIT
• Go to HKEY_LOCAL_MACHINE / SYSTEM / CurrentControlSet / Control / Lsa
• Change the value of a key called "restrictanonymous" to 0 instead of 1
• Don't change "restrictanonymoussam" value.
• Reboot