Has anyone else had this issue? I tried to password protect some posts, but once someone puts the password in once, anyone who uses the same computer later can get into the so-called protected post.

Is there a fix for this? It's at writingfromthesoul.net
in the category "group freewrites." There is a different password for the category "facilitator forum."

Thanks!

There is probably a cookie stored on the computer. You might want to ask at wordpress.org