do this..
1.Go to Start-> run. Type gpedit.msc
2.Hit enter and it opens up a window.
3.Under "Computer Configuration", click on "windows settings"
4. Under that Security settings->Local policies->Security Options
5.In Security options, find "Network Access:Sharing and Security"
6.Double Click on it and select "Classic" from the drop down box.
do this on both the pcs u want to connect n try connecting. It will again give u enter username n password option.Simply enter username n password n click "remember my password".
thats it.. u r good to go!!